During this year's legislative session, Texas had an "oh, wait, hold on, don't do that" moment on privately funded tollways. Fair enough, but now it's time to figure out what the state should do, including how to pay for what the state's highway czar calls a $100 billion shortfall in money needed for essential highway projects. Ric Williamson, the Weatherford businessman who is chairman of the Texas Transportation Commission, says "the entire future of the state transportation system" depends on potential revenue from private toll road investors. Without it, staffers with the Texas Department of Transportation told commission members at...