There's a big measles outbreak happening right now, thanks to anti-vaxxers like Jenny McCarthy and Jim Carrey and the people who listen to them. But Hollywood isn't the only place where people fall for junk science. There are anti-vaxxers in Silicon Valley, too. One of them is NetSuite CEO Zach Nelson, who in 2011 was supporting the doctor whose bogus research helped give rise to the anti-vaxxer movement.