The GOP’s Benghazi disease has metastasized into yet another committee in the Republican House of Inquisitions, seeking to waste taxpayer money in yet another failed effort to exploit the death of Americans and prosecute yet another witch hunt against Hillary Clinton. Clinton has answered. In her most important and profound speech since leaving the State Department, Clinton touted the benefits of ObamaCare and warned about the culture of gun violence that has killed far too many of America’s children. Speaking to the National Council for Behavioral Health, she called for redoubled efforts to redress economic inequality and a return to...