Sharks are back! One was spotted thrashing about at Jones Beach in New York. That’s where thousands of New Yorkers travel to beat the heat every weekend. Another person spotted a massive 12-foot great white shark off the Jersey Shore, just a mile from the coast. In Nantucket, Massachusetts, a shark can be seen feasting on a seal. It's not that unusual to see sharks this time of year. As the water gets warmer, the sharks come closer to shore. Here are some ways to stay safe.