CBS News | US govt warns travellers to be careful SBS A State Department travel alert is warning United States citizens abroad to be extra cautious. Source: AAP. 20 Dec 2014 - 1:27 PM UPDATED 1 MIN AGO. 0. The State Department is warning United States citizens travelling abroad to be extra cautious over the ... US issues worldwide travel alert for its citizens State Dept. warns American travelers to be extra cautious overseas US issues rare worldwide travel alert, cites Sydney's 'lone-wolf attack' |