security intense in new york city's times square. thousands of police patrolling the streets and subways. ed the unconfirmed threat targets either new york city or washington, d.c. around the anniversary of the september 11 attacks. it involves car or truck bombings on bridges and tunnels. catherine herridge is live in washington. you are the first reporter to obtain this 5-page bulletin. what does it suggest? >> reporter: it lays out the basic of the threat information and the potential plot. a national security source confirmed the fbi and national security community. there is word there is a smaller sub set within that group that may include legal permanent residents or citizens.