This story is part of a series examining the drug and homeless crises plaguing Oregon. Read part one and part two. McMinnville, Ore. — Ramshackle RVs, nondescript sedans, shopping carts, bicycles, tents and tarps line a street on the edge of the city, bordered by an open field and, beyond that, the Yamhill River. A lonely dumpster, lid thrown open, sits amid piles of trash. Deputies recently responded...