When Mowbray began to get the feeling that he couldn't leave even if he wanted to, he asked, "Am I being detained?" When a diplomatic security official told him "no," Mowbray announced that he was leaving. At which point, the guard stepped in front of Mowbray and said, "Now, you're being detained." He was physically kept from leaving the building, and repeatedly pushed to reveal his source, until, for whatever reason, he was allowed to go. http://www.upi.com/view.cfm?StoryID=20020715-115302-3818r