By MOHAMMAD YOUSAF and MUNIR AHMED, Associated Press RAWALPINDI, Pakistan (AP) — A Pakistani military plane crashed into a residential area before dawn on Tuesday, killing at least 19 people, most of them in their homes on the outskirts of the city of Rawalpindi, officials said. Fires, damaged houses and debris were visible in Mora Kalu village near Rawalpindi after daybreak. Victims' relatives were