Offices in Capitol Hill received a manila envelope with a letter claiming responsibility for today's bombing of a landmark military recruiting station in Times Square, NYC. Our parent site, Gothamist, tells us that "WNBC reports that the letters, which arrived today, included a photo of the Army recruiting center 'before it was bombed and...the words 'We did it.'" Which group is claiming responsibility, exactly, remains to be known. According to the AP, Senator Dianne......