Bobby and Amanda Herring spent more than a year providing food to homeless people in downtown Houston every day. They fed them, left behind no trash and doled out warm meals peacefully without a single crime being committed, Bobby Herring said. That ended two weeks ago when the city shut down their "Feed a Friend" effort for lack of a permit. And city officials say the couple most likely will not be able to obtain one. "We don't really know what they want, we just think that they don't want us down there feeding people," said Bobby Herring, a Christian...