Possible active shooter reported at U.S. Air Force Academy in Colorado Springs

COLORADO SPRINGS, Colorado -- The U.S. Air Force Academy in Colorado Springs is on lockdown after reports of an active shooter.CBS affiliate KKTV reports the academy sent out a text alert to officials and cadets around 10 p.m. local time Friday.The academy tweeted saying "We received reports of active shooter on Academy grounds. There are no confirmation of shots fired. Security Forces are sweeping the area."The El Paso County Sheriff's Office also tweeted about the situation, saying "EPSO and m