UN warns children are at risk of exploitation in Venezuela

The United Nations children's agency, UNICEF, has warned that children in Venezuela are at an increased risk of exploitation and trafficking, a week after the country was hit by two devastating earthquakes. It also said some 680,000 children were among 1.8 million people in need of humanitarian assistance. Two thousand three hundred people are known to have been killed, but tens of thousands are unaccounted for, and rescue teams are still searching through the rubble of collapsed buildings. The country's interim president, Delcy Rodriguez, has declared seven days of mourning. Also: we look at why millions of travellers in Europe have...