this morning on "world news now," hidden bombs. new warnings about terrorists with surgically implanted explosives. they could be targeting airlines with bombs carefully hidden inside their bodies. it's tuesday, may 1st. >> good tuesday, morning, i'm rob nelson. >> and i'm sunny hostin in for paula faris. the terror warnings come on the anniversary of osama bin laden's death in a take-down by navy s.e.a.l.s. we'll look back at that historic day and why it's so significant today. >> hard to believe it's been a year. >> a year. >> amazing too.