A coalition force tasked with fishery protection would address a root cause of the crisis.
A supertanker hijacking helped boost the price of oil early this week.
U.S. warships surrounded the hijacked MV Faina and its military cargo off Somalia's coast Monday.
Attacks at sea force a UN aid agency to rely on naval guards.
Gunmen hijacked four ship within 48 hours last week. Cash retrieved from ransoms is paying for weapons and salaries of fighters on both sides of Somalia's conflict.
Latest missile strike at the East Africa nation, aimed at a suspected Al Qaeda operative, keeps terrorists off balance. But some say US should do more to nation-build in Somalia.