A member of the US Secret Service and his service dog patrol the sidewalk in front of the White House in Washington, D.C. on Sept. 22, 2014. The US Secret Service has launched an investigation to find out how a man carrying a knife was able to get inside the front door of the White House on Friday night after jumping the fence on the north lawn. (Olivier Douliery/Abaca Press/MCT)
A member of the US Secret Service and his service dog patrol the sidewalk in front of the White House in Washington, D.C. on Sept. 22, 2014. The US Secret Service has launched an investigation to find out how a man carrying a knife was able to get inside the front door of the White House on Friday night after jumping the fence on the north lawn. (Olivier Douliery/Abaca Press/MCT) MCT
A member of the US Secret Service and his service dog patrol the sidewalk in front of the White House in Washington, D.C. on Sept. 22, 2014. The US Secret Service has launched an investigation to find out how a man carrying a knife was able to get inside the front door of the White House on Friday night after jumping the fence on the north lawn. (Olivier Douliery/Abaca Press/MCT) MCT

Obama lauds Secret Service as probes reveal alleged intruder’s focus on White House

September 22, 2014 06:27 PM

UPDATED September 22, 2014 06:28 PM

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