Two great white sharks that were recently spotted off the coast of Cape Cod in Massachusetts have been tagged by scientists, the second and third times the fierce creatures have ever been tagged in the Atlantic. Now, scientists can use satellite technology to track and record the sharks' travels, which will help them to better understand migratory patterns. Shark sightings are common off Cape Cod, but great whites are rarely spotted. Authorities closed beaches during the popular Labor Day weekend after the sightings, much to the disappointment of beachgoers. "I just wanted 10 more minutes because this is the warmest the water has been all summer, and I figured I was safe because I've been swimming in this water my whole life," said one disappointed local.