A Delta Airlines plane carrying 136 people nearly collided with a military jet Friday afternoon in a loss-of-separation incident outside the same DC airport where a mid-air collision took the lives of 67 people in January. Delta Airlines Flight 2983 departed its gate from Ronald Reagan Washington National Airport at 2:55 p.m. local time and was cleared for takeoff to Minneapolis-St. Paul around 3:15 p.m As the commercial plane headed south over the Potomac River, a group of four Northrop T38 Talon jets traveled west toward Arlington National Cemetery for a flyover. The Airbus A319 and the military jet crossed...