WELLFLEET (CBS) – Just this week, a shark was spotted at Duxbury Beach forcing people out of the water. From flags to signs, to alerts on your phone, if you head to the beach this summer, you’ll know if a shark has been spotted. Numerous sightings over the years have put beachgoers on edge about entering the water. However, there is a new electrical shark deterrent product that may allow people and sharks to coexist in the ocean. “We really want to encourage people to be safe in and out of the water,” says Olaf Valli owner and president of...