Shibly and McCormick's experience is not unique. In 25 cases examined by NBC News, American citizens said that CBP officers at airports and border crossings demanded that they hand over their phones and their passwords, or unlock them.

via <a href="http://www.nbcnews.com/news/us-news/american-citizens-u-s-border-agents-can-search-your-cellphone-n732746">American Citizens: U.S. Border Agents Can Search Your Cellphone - NBC News</a>.