ALBUQUERQUE, N.M. (AP) — The head of the National Nuclear Security Administration is New Mexico this week as part of a nationwide tour of the federal government's nuclear security operations.

The visit by Administrator Lisa Gordon-Hagerty coincides with the 75th anniversary of the Trinity Test in southern New Mexico, which marked the world's first atomic blast on July 16, 1945. She's scheduled to lead a commemoration Thursday at the historic V-Site at Los Alamos National Laboratory, where early testing and some assembly of the atomic bomb took place.

Gordon-Hagerty has been spearheading the fe...