MARCH 2008 : (NY : RECRUITING STATION BOMBING INVESTIGATION —) The police are also determining whether the bombing is linked to five other bombings in the past 11 years. Besides the 2005 British Consulate and October 2007 Mexican Consulate bombings, where a bicyclist threw a bomb in the 3-4 a.m. time period (and these bombs used black powder, like Thursday’s bomb), there’s also a 2000 bombing outside the Barclays Bank on Wall Street (an ammunition box - like the Times Square bomb - was used), a 1997 bomb outside 222 Broadway - across from City Hall - used “coffee cans packed with black powder” and another 1997 bombing using a coffee can outside of Planet Hollywood, when it was located on West 57th Street. -———Latest news from Gothamist blog, NYPD: Trashed Bike May Be Times Square Bomber’s http://gothamist.com/2008/03/08/nypd_trashed_bi.php
Thanks for the additional info piasa.