As Mexico drug violence runs rampant, US guns tied to crime south of border - Washington Post http://news.google.com/news/url?sa=t&fd=R&usg=AFQjCNHfi49q4tAgK0DumsaoMBipns4rMg&url=http://www.washingtonpost.com/wp-dyn/content/article/2010/12/12/AR2010121202663.html?hpid%3Dtopnews