What’s Really Inside Area 51?

People do organize events on Facebook all the time, but rarely do 1.5 million people RSVP to attend. The public event "Storm Area 51, They Can't Stop All Of Us" was created on June 27th and it took off like wildfire worldwide. The meme calls for all to gather at the alien center on September 20th at 3:00 am to storm Area 51. The event carried a disclaimer, "P.S. Hello US Government , this is a joke, and I do not intend to actually go ahead with this plan." The creator of the post Matty Roberts of California came forward yesterday and explained his satire.

So what is actually inside Area 51? Why can't we see it? There's a very good reason!