I am sure that just a test that was done, but still, makes me feel nice and warm inside.
"Nobody within the Department of Defense that we've reached out to has been able to explain what this contrail is, where it came from," Pentagon spokesman Col. Dave Lapan said. "So far, we've come up empty with any explanation."
http://www.cbsnews.com/stories/2010/...ml?tag=topnews