A senior al-Qaida operative lived in New Jersey and posed as a student to disguise his surveillance of financial institutions as possible terror targets, officials said Wednesday. The FBI's top agent in New Jersey, Joseph Billy Jr., confirmed that the operative led an al-Qaida mission to survey the physical layout and assess weaknesses of the Prudential Financial Inc. building in downtown Newark. While carrying out this reconnaissance operation - which included surveys of the New York Stock Exchange building on Wall Street and Citigroup's headquarters in midtown Manhattan - the man attended several institutions of higher learning in New Jersey,...