AfD threatens to quit Schengen and euro — expert says they'd come to their senses

AfD leader Alice Weidel has promised that if her party takes power, Germany will leave the Schengen zone and abandon the euro. Prof. Roman Kuźniar, a former diplomat and international relations expert, dismisses these as pre-election scaremongering. He argues that any German government serious about cutting ties with Europe would effectively be moving to Mars.