Scientists use DARHT to study key aspects of nuclear weapons physics. The information that they gain from experiments there is critical to - support nuclear weapons life-extension activities - help ensure the continued safety and reliability of nuclear weapons in the U.S. stockpile - further understanding of nuclear weapons behavior Video: How DARHT Works -- <script type="text/javascript"> var wmNotice = "UNT Web Archive - External links, forms, and search boxes may not function within this collection. Url: http://www.lanl.gov/_assets/php/flickrImage.php?photo_id=6848254477&secret=a5905f954c time: 8:22:13 Sep 28, 2012"; var wmHideNotice = "hide"; var contextRoot = "https://webarchive.library.unt.edu/web/"; </script> <script type="text/javascript" src="https://webarchive.library.unt.edu/web/js/disclaim.js"></script> <a href="https://webarchive.library.unt.edu/web/20120928082213/http://www.youtube.com/watch?v=EFZzYLXvQ30&list=UUbWmiA_pHk9DE62BaSUFFRw&index=4&feature=plcp" rel="nofollow">www.youtube.com/watch?v=EFZzYLXvQ30&list=UUbWmiA