CALIENTE, Calif. -- Several chimpanzees escaped from their cages at an animal sanctuary and attacked workers, injuring two, authorities said. At least one chimp was shot to death. One of the employees was badly injured and had to be airlifted to a hospital after the attack at the Animal Haven Ranch, about 20 miles from Bakersfield, said Cheryl Longwith, a sheriff's spokeswoman. The other employee's condition was not disclosed. Animal Haven employees shot and killed at least one of the escaped chimpanzees, Longwith said. Longwith said she did not know how the chimpanzees had escaped their cages or whether any...