"Professor Friedman saw the Wall Street Journal's piece and responded in the Huffington Post with "An Open Letter to the Wall Street Journal on Its Bernie Sanders Hit Piece."
He writes that the Journal wasn't completely wrong: the program would involve spending $15 trillion over a decade. But they left out the key detail: it would actually save the country a total $5 trillion over those 10 years. We'd see those savings in reduced administrative waste, lower pharmaceutical and device prices, and by decreasing the rate of medical inflation."