But Richard Mather posted: "Looks like there burning their toxic waste again. Well the president signed an executive order that they can do what they like."
This is probably the case. They do burn toxic waste there. Several former employees of area 51 tried to sue the Federal government for their health issues related to the toxic fumes from burning the "stealth" coatings used on aircraft.
President Clinton signed an executive action determining that all information was National security related and therefore the employees could not sue.
most likely POTUS isn't even privy to all the Skullduggery going on there!

Plausible Deniability........