Federal government launches civil, criminal investigations into BP Gulf oil spill

Tuesday, June 1, 2010 | 3:31 p.m. CDT; updated 12:59 p.m. CDT, Thursday, June 10, 2010

PORT FOURCHON, La. — Attorney General Eric Holder said Tuesday that federal authorities have opened criminal and civil investigations into the nation's worst oil spill, and BP lost billions in market value when shares dropped in the first trading day since the company failed yet again to plug the gusher.