[img]http://d.yimg.com/a/p/ap/20100218/capt.22dd3b99a37f4d7f8990e562c583b5dd.plane_crash_texas_txtg101.jpg?x=86&y=130&q=85&sig=R2CX0Ri3RLV25bbO6iWEtg--[/img]AP - A software engineer furious with the Internal Revenue Service launched a suicide attack on the agency Thursday by crashing his small plane into an office building containing nearly 200 IRS employees, setting off a raging fire that sent workers running for their lives. At least one person in the building was missing.