Solemn-faced Kenyans whose relatives were killed in the terrorist bombing of a U.S. Embassy collected benefits on Friday they said failed to compensate for their losses. Nearly two months after the bombings of the American Embassies in Kenya and Tanzania, a picture of those charged in the case is slowly emerging. Nine months before the attack on the American Embassy here, U.S. intelligence officials received a detailed warning that Islamic radicals were plotting to blow up the building, according to Kenyan and American officials.