D.C. has given Elon Musk a permit to do a little digging for the Hyperloop
(LA Times Auto Racing)

It´s not much now, just a parking lot with a discarded gin bottle and an old exterminator receipt. But the slice of pavement near the Bureau of Alcohol, Tobacco, Firearms and Explosives building in the District of Columbia could be the gritty precursor to a tunnel network that could propel pods...