When lawmakers have hauled tech CEOs to Capitol Hill seeking genuine answers, their attempts have tended to fall flat. In March, when the CEOs of Facebook, Google and Twitter testified before a House panel, several lawmakers tried to ask "yes or no" questions in an effort to conserve time and pin down information from the executives. The strategy backfired as the CEOs repeatedly answered complicated questions in full sentences, and lawmakers drew criticism for their tactics for not fully understanding how tech companies operate.