SAN FRANCISCO (AP) - Three people, at least two of them from Oregon, are wanted for questioning by the FBI about last week's double bombings at the Emeryville, Calif., headquarters of biotechnology company Chiron Corp. No one was injured in the blasts early last Thursday, but a group called ``The Revolutionary Cells'' claimed responsibility in an anonymous e-mail and warned that the company's employees may be attacked at their homes. Animal rights activists have targeted Chiron because of its contracts with Huntingdon Life Sciences, an English company that uses animals to test drugs. The three people are Bjorn Einertsen, 25,...