When a Denka plant was exposed as emitting large amounts of chloroprene, a concerned citizens group formed in Louisiana to fight back.
Speaking before the Senate Armed Services Committee, Adm. Harry Harris refused to rule out the possibility of the US toppling Pyongyang "for the heck of it."
James Cersonsky is a labor and education reporter and an editor at StudentNation. He directs an action research program connecting students with neighborhood history. Find him on Twitter @cersonsky.