Why do those Somali pirates attack all sorts of vessels?

Piracy off the coast of Somalia has become a multi-million dollar business as armed Somali gunmen attack all sorts of vessels—from small pleasure crafts to giant oil supertankers—transiting the region. The pirates are not interested in the cargo or crew. They only want ransom money that can reach several million dollars per vessel. In an effort to combat piracy, naval ships from the United States, the European Union, China, Russia, India and others have been dispatched to the region—especially to the Gulf of Aden. But analysts, such as J. Peter Pham with James Madison University in Harrisonburg, Virginia, say the pirates have changed their tactics.