When it was announced that Barack Obama was successful in keeping his BlackBerry as President the mainstream media focused on the privacy issues surrounding the President's email. The real threat it seems, is the ability of someone to track the President's location.

"We know that the president has been given a White House-issued BlackBerry phone. As a result, Obama's smartphone is broadcasting its IMEI serial number for anyone with the right equipment to detect."

Check out the full article for the details. It's an interesting read.