Homeland Security Secretary Janet Napolitano and Arizona Republican Sen. John McCain had a terse exchange over border security in a Wednesday hearing on terrorism threats.

Gov. Jan Brewer says her mentally ill son was concerned about his privacy when he asked a court to block public inspection of records from his 2-decade-old criminal case — records that a judge has now ordered be released.

As a former governor of Arizona, you know the devastating effects illegal immigration and the Mexican drug cartels have on our state. As secretary of Homeland Security, you know the Tucson Sector along Arizona’s southern border has become the gateway for drug cartels and human smuggling activity.