Colombia right-wing lawyer De La Espriella, leftist senator Cepeda set for adversarial runoff
By Julia Symmes Cobb, Nelson Bocanegra and Luis Jaime Acosta BOGOTA, June 1 (Reuters) - Right-wing Colombian lawyer Abelardo De La Espriella and leftist senator Ivan Cepeda will compete in a June presidential runoff after a tight vote on Sunday, in a contest dominated by voter concerns over security