The gray slime eating Washington, D.C.

The National Parks Service has confirmed that a gray-black biofilm is growing on the Jefferson Memorial and other monuments in Washington. They don’t know what it is or how to kill it, but they haven’t ruled out the use of lasers.

Also: Obama’s transgender school policy blocked by federal judge; Louisiana continues to struggle with unprecedented flooding; huge fish die-off in Yellowstone River; ice wall at Fukushima still leaking; and Roman Catholics getting frustrated with Pope Francis’ weak response to Islamic terror.