Mexico demands answers as cartels seem to wield massive amounts of US-manufactured military ordnance. Pop musician Taylor Swift inspires bizarre, panicked reactions among America's conservatives. Pharmaceutical giant Bayer is under the gun yet again as the dangers of Roundup, once dismissed as a conspiracy theory, result in a lawsuit putting the company on the hook for more than 2 billion US dollars. A woman in Colorado discovers she is on the Minnesota presidential primary ballot -- she doesn't want to be president, and she can't get her name off the list. All this and more in this week's strange news segment.