Barack Obama earned abreak. In search of a home game after a long autumn in Washington full of shutdowns and broken Web sites, the president flew to San Francisco last week. He found the friends and dollars he was after, but at a pair of invitation-only speeches in front of handpicked audiences, the president also found hecklers. The shouts inside on immigration reform were mellow compared to the scene outside: grandmothers in pink and Iraq War veterans playing drone war-dead in the streets, and a giant, black, faux Keystone XL pipeline promising more death if Obama let it go forward. "I don't know what they're yelling," Obama joked, but he had to notice that this deep-blue crowd had become a little hostile.