after getting another type of flu vaccine. so, certainly one that everyone is watching now. >> shepard: it's a good thing. laura, thanks, as the flu season is in full swing. a backpack bomb discovered along martin luther king parade in spokane washington. along that route, investigators are now saying two t-shirts left in the backpack are tied to a county just north of that city one of the shirts from the stevens county relay for life 2010. the other reading treasure island spring 2009. we're told only 40 copies of that shirt were given to astudents who participated in a school play. the district superintendent say none of his students is a suspect. you will recall three city employees alerted employees on monday after they spotted wires in this unintended backpack. sources tell fox news that bomb was packed with some form of shrapnel. it had a remote controlled detonator. the backpack was reportedly sitting upright on a metal bench with a brick wall behind it,