Patrick Cau, a German citizen and former United Airlines flight attendant, has been sentenced to 18 months in a U.S. federal prison for making eight false bomb threats against United Airlines flights. Cau was fired by the airline about a year before the first threats began surfacing from a variety of U.S. cities in late 2012. Cau must also pay nearly $314,000 in restitution to both his former employer and the Los Angeles Police Department for expenses related to the threats.