NEW YORK - Seized from a plane about to fly to the Middle East, a Pakistan-born man admitted training to make bombs at a terrorism camp in his native land before he rigged an SUV with a homemade device to explode in Times Square, authorities have said. Faisal Shahzad, a naturalized US citizen who recently spent five months in Pakistan, was arrested on terrorism and weapons of mass destruction charges for trying to blow up the crude gasoline-and-propane bomb amid tourists and theatergoers Saturday evening. He was in custody after being hauled off a Dubai-bound plane at Kennedy Airport that he had been able to board Monday night despite being placed on the federal "no-fly" list. Authorities had planned to arrest Shahzad, who had been under constant watch from mid-afternoon, at his Connecticut home, but lost track of him, two people familiar with the probe told The Associated Press. The people spoke on condition of anonymity because they weren't authorized to talk publicly about the breach in surveillance. Because Customs and Border Protection agents were on the lookout for Shahzad, they recognized his name on a passenger manifest and ordered the flight stopped so they could arrest him. Authorities shed little light on what might have motivated Shahzad who since moving from Pakistan to Connecticut had acquired a master's degree in business administration and a house in the suburbs that subsequently was lost to foreclosure. He reportedly came from a background of privilege and wealth the son of a retired air vice marshal. A real estate broker who worked with Shahzad in 2004 said the bombing suspect had expressed a dislike for former President George W. Bush and his policy in Iraq.