Last night, Tucker Carlson broke an explosive story featuring internal Google documents indicating that the company made a "silent donation" – its own term – to the Hillary Clinton campaign by using its information channeling might to mobilize voters it thought would cast ballots for the Democrats' candidate. The move was unsuccessful, but it illustrates the enormous power to shape elections by bringing some information to the voting public while suppressing other information. As Carlson points out, if Russian purchases of a hundred thousand bucks' worth of Facebook ads is supposed to be worrisome, the power of Google, which is...