(CNN)In one of Attorney General William Barr's final acts leading the Justice Department, he plans to announce on Monday criminal charges against an alleged bombmaker in the terrorist bombing of Pan Am flight 103 over Lockerbie, Scotland, in 1988. The former Libyan intelligence officer Abu Agila Masud is expected to be charged for his involvement in the bombing, according to three officials familiar briefed on the matter. Monday is the 32nd anniversary of the attack, which killed 270 people, the majority of whom were Americans. The Pan Am Boeing 747 was en route from London to New York. The announcement...