ELMWOOD PARK, N.J. – They were recorded talking jihad against their fellow Americans. But they hadn't talked the jihadists into accepting them.

When the two New Jersey men tried to fly out of New York's Kennedy Airport in hopes of getting terror training in Somalia, investigators who had been following them for years were waiting for each of them at the gate, officials said Sunday.

Mohamed Mahmood Alessa, 20, and Carlos Eduardo Almonte, 24, were arrested Saturday before they could board separate flights to Egypt and then continue on to Somalia, federal officials in New Jersey and the New York Police Department said.

They are the latest of several U.S. Muslims accused of joining or trying to join terrorist groups, radicalized with help from fellow Americans preaching violent jihad over the Internet.

Authorities say they recorded Alessa and Almonte talking about attacking Americans. Alessa allegedly said he would outdo Maj. Nidal Hasan, the Army psychiatrist accused of killing 13 people at Fort Hood, Texas, last year.

He's not better than me. I'll do twice what he did," Alessa was recorded saying, according to court documents.

They had no known connections to established terrorist groups, however. They had traveled to Jordan three years ago and tried to get into Iraq, only to be rejected by jihadists, New York Police Commissioner Raymond Kelly said. Their trip to Somalia apparently amounted to a leap of faith that they would be embraced by al-Shabab, a violent extremist group based in Somalia and connected to al-Qaida.

Though Americans are potentially valuable to terrorist groups, they also carry the risk of being undercover investigators — like the one who had gained Alessa's and Almonte's trust well before their arrests.

In March, Alessa was recorded telling Almonte and the NYPD undercover officer that no one else they knew in New Jersey should be included in their plan to join al-Shabab because only the three of them were "serious about their plan and were preparing for it." Court documents do not indicate that authorities had other targets in the investigation.

Law enforcement became aware of the men in the fall of 2006, after receiving a tip. Since then, during the lengthy investigation, the undercover officer recorded conversations with the men in which they spoke about jihad against Americans.

I leave this time. God willing, I never come back," authorities say Alessa told the officer last year. "Only way I would come back here is if I was in the land of jihad and the leader ordered me to come back here and do something here. Ah, I love that.

Kelly said Alessa, of North Bergen, and Almonte, of Elmwood Park, are American citizens. Alessa was born in the United States and is of Palestinian descent. Almonte is a naturalized citizen who was born in the Dominican Republic.

They are accused of trying to join al-Shabab, which was designated by the U.S. as a terrorist group in 2008.

Investigators say they are among many U.S. terrorism suspects to have been inspired by two well-known U.S. citizens who have recruited terrorists through the Internet: Adam Gadahn, an al-Qaida spokesman in Pakistan, and Anwar al-Awlaki, a radical al-Qaida cleric hiding in Yemen who is believed to have helped inspire recent attacks including the Fort Hood shooting, the Times Square bombing attempt and the failed Christmas Day airline bombing.

Both men have made public calls for smaller, single acts of terrorism and court documents show Alessa and Almonte appearing to be inspired by that idea.

Alessa and Almonte face charges of conspiring to kill, maim, and kidnap persons outside the United States by joining al-Shabab. Teams of state and federal law enforcement agents who have been investigating the men took them into custody, authorities said. They are scheduled to appear Monday in federal court in Newark.

Kelly on Sunday cited the "excellent work" done by the undercover officer, who Kelly said was of Egyptian descent and in his mid-20s.

No one answered the door at Almonte's house and the blinds were drawn. A man who said he was Almonte's father walked into the home shortly before 1 p.m. with another man.

I'm very confused by all this. He's my son," he said before he went inside. "I just don't understand it.

David Castro, 56, of Elmwood Park, is an Army reservist who lives across the street from Almonte. He said he doesn't know the suspect but knows his father and described the family as friendly.

Terrorists' recruiting techniques "almost seem better than the U.S. Army," Castro said. "This is happening not just in bad neighborhoods. This is happening in good neighborhoods like this one.

Alessa lived with his parents in the densely populated New York suburb of North Bergen, said Hemant Shah, the family's landlord. Alessa was attending Bergen County Community College, Shah said, and his father worked at a convenience store.

It's surprising," Shah said of the arrests. "If it's true, it's very scary.

Shah said he often saw Alessa with a man who went by "Omar" and a third man that he now believes may have been the undercover FBI agent. He said he believes the agent was often with the other two over the past year or more.

Shah checked on Alessa's parents Sunday and said they didn't want to talk to reporters.

His parents, they were trying to put him in the right direction," he said.

While court documents paint a picture of two men deeply committed to terrorism, their training was apparently scattershot. They lifted weights, hiked in the snow at a local park, bought military-style pants and water bottles, played violent video games and watched terrorist videos online.

The men said they planned to get weapons when they went abroad. The only weapons they possessed were two folding knives Alessa said he would use to kill police if they tried to get near him: "I'm-a cut them in half with it, even if I die," Alessa said, according to court documents.

Alessa and Almonte had planned their trip to Somalia for several months, saving thousands of dollars, officials said. Both had bragged about wanting to wage holy war against the United States both at home and internationally, according to a criminal complaint.

Almonte told the undercover agent that three years ago, they traveled to Jordan to try to be recruited with holy warriors and were upset when their contacts refused to recruit them.

Officials said the two men were not planning an imminent attack in the New York-New Jersey area and weren't suspected of plotting any violence on their flights.

The two men knew early on they had come to the attention of law enforcement.

By the end of 2006 agents had talked with Almonte and a family member, and in March 2007 the FBI conducted a consensual search of his computer, revealing documents advocating jihad against the perceived enemies of Islam, court papers show.

Last November, investigators recorded Alessa telling Almonte that lots of people needed to be killed.

My soul cannot rest until I shed blood," Alessa said, according to court documents. "I wanna, like, be the world's known terrorist.

Somalia, an impoverished East African nation of about 10 million people, has not had a functioning government for more than a decade, although the U.S. is backing a transitional government there. The Pentagon's top commander in the region has included Somalia on a list of countries where clandestine American military operations designed to disrupt militant groups would be targeted.

Almonte told the undercover officer in April that there would soon be American troops in Somalia, which he allegedly said was good because it would not be as gratifying to kill only Africans.

Somalia welcomed the arrests of Alessa and Almonte.

Foreign terrorists here are an obstacle to lasting peace in Somalia. So we welcome the move and we are calling on all governments to take such steps against al-Shabab and all terrorists at large," said Sheik Abdirisaq Mohamed Qaylow, a spokesman for the Ministry of Information.

Over the past year, a number of Somali youths have traveled from the U.S. back to Somalia to fight with al-Shabab insurgents. At the same time, battle-hardened al-Qaida insurgents have moved out of safe havens along the Pakistan-Afghanistan border into Somalia, where vast ungoverned spaces allow them to train and mobilize recruits without interference.

U.S. authorities, including the FBI, have been working with Somali diasporas, including a large community in Minnesota, to stem the radicalization of young people who are being recruited to join the terror fight.

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Apuzzo reported from Washington. Contributing to this report were Associated Press writers Geoff Mulvihill in North Bergen, N.J.; Samantha Henry in Newark, N.J.; Tom Hays and Karen Matthews in New York; Mohamed Sheikh Nor in Mogadishu, Somalia; Lolita Baldor in Washington and AP Radio Correspondent Julie Walker in New York.

(This version CORRECTS Almonte's age to 24, not 26, per complaint.)