CNN : Two Americans of Arab descent are believed to be involved in the plot . NEW : Authorities are piecing together information gleaned from traffic logs and interviews . A senior U.S. official said the plot was believed to involve three individuals . NEW : A third American is believed to be have traveling in Europe . Gov . Andrew Cuomo directs state police to help with security at major transport terminals .
CNN : Two Americans of Arab descent are believed to be involved in the plot . NEW : Authorities are piecing together information gleaned from traffic logs and interviews . NEW : A third American is believed to be have traveling in Europe . Gov . Andrew Cuomo directs state police to help with security at major transport terminals .