The American Civil Liberties Union claimed in a federal lawsuit Wednesday that California's lethal injection protocol violates the First Amendment rights of execution witnesses by not allowing them to see if the inmate is experiencing pain before death. The suit, filed in U.S. District Court in San Francisco, says the only reason San Quentin State Prison officials inject a paralyzing agent is to sanitize the execution and prevent witnesses from perhaps seeing convulsions. The paralyzing drug, according to the lawsuit, "makes it impossible for witnesses to determine whether death row inmates in California are being subjected to substantial and unnecessary...