This year marks the 50th anniversary of "Jaws," Steven Spielberg's 1975 blockbuster about a ravenous great white shark. The film packed theaters and terrified audiences, leaving behind a lasting fear of sharks. While many Americans are terrified of them, shark attacks are relatively rare and the species is widely misunderstood. PBS News Hour's William Brangham spoke to the Living Sharks Museum's Keith Cowley to learn more about sharks and dispel common misconceptions. | PBS NewsHour