NOTE: Not an exact quote but Allen wrote a book “Charting a New Course The Case for Freedom, Flexibility & Opportunity Through Charter Schools” that proposes just this idea.  If you hire someone to buy your groceries, you’ll probably ask for a receipt.   That’s really all education advocates want from the charter school industry.   Charter schools are bankrolled with tax dollars but often run by private businesses.   Is it too much to ask these businesses to account…