 Rip currents are really strong. If you're caught in one and you try to swim straight in, you're not going to be able to. Officials say six people have recently drowned from rip currents in Florida. I'm Anna Eliopoulos, Fox News. Walgreens will be closing what it calls a significant number of stores across the U.S. The drugstore chain making that announcement Thursday said it plans to close underperforming stores.