 Shark attacks at beaches over the holiday weekend, including several people bitten by the same shark in Texas. We do want to remind everyone this is not just happening in the south. Even up here in the northeast, there's been several instances of shark sightings. In New York, the lifeguards are now armed with drones to keep an eye out for them. And already this summer, there's been some instances of beaches on Cape Cod that have been shut down because of multiple great white shark sightings. ABC's Trevor Ault. Experts say shark attacks remain extremely rare.