Liberia, March 27 -- It was Kayla's birthday. She was putting her baby son into his car seat, her daughter climbing into the back, her fiance Eriah Nahnie behind the wheel. It was just after 8 in the morning - a routine school run on a cold winter's day in United States state of Massachusetts, on what should have been a day of celebration.

Then the vans appeared.

"It was like a movie," Kayla said. "Probably three or four cars - vans, a truck. I don't even know where they came from. And they had took guns out. Not little guns. Huge guns."

Men in Immigration and Customs Enforcement vests surrounded the car, screaming. They pulled Eriah from the driver's seat, slammed him against the vehicle, and forced him into one of the vans. An Americ...