It's a common sight on the streets of downtown Portland, Oregon: people in front of stores, trendy restaurants and hotels, on sidewalks, corners, and benches, crouched over torch lighters held up to sheets of tinfoil or meth pipes. Some drape blankets over their heads, or duck behind concrete barriers. Others don’t try to hide. "All summer long, we were right out in the open. You didn't have to be paranoid anymore, you didn't have to be worried about the cops," said John Hood, a 61-year-old drug addict living on the streets of Oregon’s most populous city. Hood spoke to Reuters...