Barack Obama has insisted that the Libyan leader should step down from power and leave, saying he is keeping all options - including military, to respond to the Libyan crisis. He also asserted that all those who perpetrate violence against civilians would be held accountable. Do you think Obama’s speech is going to affect what the Libyan leader chooses to do? Should the world community do more now to end Libya’s crisis? What should be done? Send us your reaction