White House lockdown could've been triggered by 'flock of birds or weather balloon'
White House placed on lockdown during protesting
Party balloons trigger brief White House lockdown - CBS News
White House on Lockdown After Secret Service Alerted to Vehicle at Checkpoint
Slow-moving blob' that may have been a flock of birds caused White House lockdown | CNN Politics
Mysterious 'blob' that caused White House lockdown may have been birds | CNN Politics
White House Goes On Lockdown Friday Morning - YouTube
Violation of airspace that prompted White House lockdown was false alarm - UPI.com
White House lockdown lifted after potential airspace violation
White House on lockdown after man sets himself on fire
White House no longer on lockdown after airspace violation in D.C.
/cdn.vox-cdn.com/uploads/chorus_image/image/45838948/thewhitehouseSS.0.0.jpg "Food Cart Fire Triggers Brief Lockdown at the White House - Eater")
Food Cart Fire Triggers Brief Lockdown at the White House - Eater
White House on lockdown after security incident | The White House has been placed on lockdown after Secret Service said a driver rammed a security barrier: 2wsb.tv/2HGOzZ7 | By WSB-TV | Facebook
White House lockdown lifted after man throws 'personal belongings' over fence | WJLA
Secret Service responds to suspicious package near White House
White House lockdown lifted – The Bug Online
White House Lockdown Lifted After Secret Service Shoots a Person - The Atlantic
White House Briefly Put On Lockdown After Driver Hits Security Barrier : The Two-Way : NPR
White House placed on lockdown, one person detained by Secret Service
White House on lockdown”: Trump to host election night party House behind “non-scalable” fence | Salon.com
White House Lockdown Prompted By Robbery Suspect Who Jumped Fence
White House lockdown lifted after 'suspicious activity'
With 'Non-scalable' Fence, White House Barricades Itself In
A White House Long in Denial Confronts Reality - The New York Times
