Mexico's Congress approves reform allowing foreign agents to bear arms
Security personnel for high-level foreign officials will also be permitted to carry arms during visits to Mexico.
An unarmed U.S. Immigration and Customs Enforcement agent was killed in 2011, after his car was ambushed by drug gang members in central Mexico.
The reform still needs to be signed into law by President Enrique Pena Nieto.
(Reporting by Joanna Zuckerman Bernstein; Editing by Joseph Radford)