The 18-month-old child who was in the car during a chase near the White House was not injured and has been placed with child protective services.
NBC News cites law enforcement sources as saying that the child is believed to be the driver's daughter.
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Sixteen people were injured when a train crashed into a railway station buffer on Monday.
"Our ability to pre-empt or respond to threats will be eroded if we don't keep up with our adversaries."
"You are one of the silence breakers and we all owe you a debt of gratitude."