A road trip from Southern California to San Francisco blows up the conservative myth that “government is bad for business” from Mile 1. First, you’ll likely drive up Interstate 5. That’s one of the highways largely built with taxpayer funds as part of the Interstate Highway System. I-5 runs through California’s Central Valley, where a big portion of America’s fruits and vegetables are grown, and it’s not unusual to see agricultural trucks making up 50 percent or more of the road traffic. Those truckers, growers, store owners and consumers throughout the U.S. depend on I-5 and other federal and state highways to move commerce to market efficiently.