Homelessness,hungerandshame:povertyisrampantintherichestcountryintheworld.Over40millionpeopleintheUnitedStateslivebelowthepovertyline,twiceasmanyasitwasfiftyyearsago.Itcanhappenveryquickly.ManypeopleintheUnitedStatesfallthroughthesocialsafetynet.InthestructurallyweakminingregionoftheAppalachians,ith...