Tiger sharks are common in the waters surrounding Tenare Island  Usually tiger sharks feed on smaller sharks, but sometimes they have attacked tourists swimming and surfing at Tenare' s beaches  This has hurt Tenare' s tourism industry, which is second only to its fishing industry in annual revenues
In order to help the economy, ttherefore, the mayor of the island has proposed an ongoing program to kill any tiger sharks within a mile of the beaches
Even if not all the tiger sharks that come close to the beaches are killed, the existence of the program would reassure tourists.