Presidential Security Nugget of the Day

Always fun to read about the day-to-day operations of the White House, including the extraordinary security apparatus around the President. Here's just one of many interesting nuggets:

The President-elect will also have to get used to handing his glass to a Secret Service agent every time he has a drink outside the White House. The agent carries a small bag in which to pop the glass and later he destroys it. The idea is to ensure that no unauthorised person has access to the Presidential DNA, but it is not clear how an enemy would use it.