Calderon visited Juarez last week to discuss slayings of 15 people . The Mexican government has said it will not pay for the cost of a wall along its border with Texas and that it would be willing to work with U.S. officials on other security issues. Calderon 's resignation has been sought by residents . He is leading a campaign to rid Mexico of drug trafficking .
Calderon visited Juarez last week to discuss slayings of 15 people . Latest visit will be his third since taking office in 2006 . Calderon 's resignation has been sought by residents . He is leading a campaign to rid Mexico of drug trafficking .