Syfy’s Sharknado franchise is the Pet Rocks of modern TV. There’s no explaining how an idea this basic, and this stupid, ever got this popular. Yet here it is, with a rabid social media following that keeps these tongue-in-cheek, teeth-in-mouth shark movies coming, each more intentionally absurd than the last. Ian Ziering and Tara Reid continue to star, and a bewildering array of guest stars make cameo appearances, usually as some type of instantly devoured shark victim. One thing about Sharknado 5 that’s worth applauding, though, is its sloganeering. Not only is Global Swarming a clever subtitle, but this latest Sharknado outing has an unbeatable tag line it’s using on promos: “Make America bait again.”