Border Patrol chopper forced down
`Rock-throwing illegal immigrants near Yuma, Arizona, forced a U.S. Border Patrol helicopter pilot to make an emergency landing this week, the customs agency said. [..]
While the helicopter was hovering, a group of 10 people on the south side of the canal began throwing baseball-size rocks at it, Gramley said.
One rock hit a rotor, Gramley said. The pilot felt a bad vibration and made an emergency landing about a mile away.’
