Top officials close rank around Argentina's embattled president

By Richard Lough BUENOS AIRES (Reuters) - Top government officials rallied behind Argentina's President Cristina Fernandez on Saturday after a state prosecutor said he would keep investigating accusations that she tried to cover up Iran's alleged involvement in a 1994 bombing. On Friday, state investigator Gerardo Pollicita formally reiterated the accusations leveled against Fernandez a month ago by his colleague Alberto Nisman. Nisman was found dead, with a single bullet in his head,