$2 billion NSA Utah data center nearly unusuable after 10 fiery explosions/meltdowns

From Time:

Officials told the Wall Street Journal that 10 fiery explosions, known as arc-fault failures, have ripped apart machinery, melted metal and destroyed circuits. The repeated meltdowns have delayed the opening of the one-million square foot facility by 12 months.

From The Atlantic:

The Army Corps of Engineers is overseeing the construction of the facility, but the electrical work was contracted out to architectural firm KlingStubbin, which is itself a subcontractor of  Balfour Beatty Construction, DPR Construction and Big-D Construction Corp.

     A Forbes reporter describes how the NSA reacted when she took some photos of the data center from the outside.