From 11:00PM PDT on Friday, July 1 until 5:00AM PDT on Saturday, July 2, the Shmoop engineering elves will be making tweaks and improvements to the site. That means Shmoop will be unavailable for use during that time. Thanks for your patience!
The airport security checkpoint at Denver International Airport. Security at airports is overseen by the Transportation Security Administration, whose responsibilities have grown since September 11th. Creative Commons Attribution Share Alike (cc by-sa) David Benbennick