Area 51 and the plan to find out what the government knows about aliens

More than a million people are planning to break into Area 51, the mysterious government base in Nevada that's rumored to be where the U.S. military studies extraterrestrial life. A Facebook event called “Storm Area 51, They Can’t Stop All of Us" says on September 20 at 3:00 a.m., the group will raid the government facility. What started as an internet joke has now caught the attention of the U.S. Air Force.