Long drives to and from work don't just suck up your time; these long commutes may also be hazardous to your health. Besides draining you mentally and forcing you to sit for extended periods through traffic jams, long commutes are linked to less sleep, high cholesterol, and obesity.

The U.S. Interstates as a Subway Map infographic is a subway-style map of America's interstate highways, and it's pretty handy for quickly planning a cross-country trip. You can see at a glance how the highways connect and the major cities along the way.

The TSA's been under fire for everything from overly aggressive screenings to ongoing privacy concerns. That's where we are. But how did we get here? Like anything else: step by step.