Who has the absolute best protest slogans? Professional writers, that's who! The Writers Guild of America went on strike a couple of weeks ago, stalling TV shows and cutting daily talk shows completely off. But these writers are still entertaining us with their signs. Many of them reference great lines from shows that have stuck with us for years. That's they way to signal your value to the masses, if not to the production companies responsible for their contracts. See 15 of the most clever signs from the writer's strike at Insider. -via Digg