The White House was reportedly placed under temporary lockdown after a car rammed a security signpost at Lafayette Square. Secret Service has arrested two people after the car breached a barricade and crashed outside the White House, reported Fox News. #WhiteHouse #WhiteHouseLockdown #SecretService About NDTV (English news channel): NDTV is India's Most-Trusted News Broadcaster with the latest updates in news, sports, entertainment and much more from within India and around the.