On Thursday, the U.S. government ordered family members of employees at its embassy in Venezuela to leave as the nation's political crisis deepened ahead of a controversial vote critics contend will end democracy in the oil-rich country. Similarly, Canada warned its nationals against non-essential travel to Venezuela and urged citizens already there to leave. As well as ordering relatives to leave, the U.S. State Department on Thursday also authorized the voluntary departure of any U.S. government employee at its compound-like hilltop embassy in Caracas, where hyperinflation is about to hit 1,000%.