Columbia

Hillary Clinton...Democratic presidential candidate Hillary Clinton gestures during a commercial break at a CNN town hall style televised event at the University of South Carolina School of Law, in Columbia, S.C., Tuesday, Feb. 23, 2016. (AP Photo/Gerald Herbert)

  © Gerald Herbert/AP

Democrat presidential candidate Hillary Clinton gestures during a commercial break at a CNN town hall televised event at the University of South Carolina School of Law, in Columbia, US

 Colombian police officer carries a pack of marijuana seized in Cali...A Colombian police officer carries a pack of marijuana seized in Cali March 30, 2015. Colombian narcotics police seized 4.1 tons of marijuana from drug trafficking gangs in two houses in Corinto, Cauca, according to authorities. REUTERS/Jaime Saldarriaga      TPX IMAGES OF THE DAY

Jaime Saldarriaga/Reuters

A Colombian police officer carries a pack of marijuana seized by police. Narcotics police seized 4.1 tons of marijuana from drug trafficking gangs in two houses in Corinto, Cauca, Colombia

Russia's Ivan Kovalev, third from left, competes to win the gold in the men's scratch race at the Track Cycling World Championships in Cali, Colombia, Thursday, Feb. 27, 2014. (AP Photo/Fernando Vergara)

Fernando Vergara/AP

Russia’s Ivan Kovalev, third from left, on his way to winning the gold medal in the men’s scratch race at the Track Cycling World Championships in Cali, Colombia.