May 8, 2014 8:28 pm Lockdown Lifted at Air Force Base A lockdown at Dover Air Force Base was lifted after every building was searched. NBC10’s Tim Furlong has the details. US & World Videos 0:35 Fans of ‘The Office' got to see some of the stars at Fan Expo Philadelphia on Saturday 2:32 Rainy, chilly weather didn't stop many from enjoying festivals throughout Philadelphia 0:29 Driver found safe after carjacking in Delaware 2:23 Teen killed in quadruple shooting in North Philadelphia on Saturday evening 0:39 Teen shot near church in West Philly, two in custody