President Obama should order the US military to jam the Libyan regime's communications. Simple, non-lethal electronic warfare activities carried out off Libya's coast can blind the regime, destroy its command and control, and isolate the leadership from one another and from the instruments of force.
Our legal justification can be that the Libyan regime is jamming civil communications in the region - interrupting TV signals across the southern and eastern Mediterranean - as well as humanitarian intervention.
The Libyan military is already divided, with two colonels defecting with their aircraft to Malta after being ordered to bomb protesters in Benghazi.
We don't know who the Libyan rebel forces are, but and there's a danger until we know who they are. That's no reason not to help Libyans destroy Qaddafi's government and the dictator personally.
These flights can take place out of Europe or from the deck of an aircraft carrier. Cheap, easy and decisive.