But Ansar al-Sharia remains 'very dangerous': commander
                                
                                
                                    (Newser) -
                                    Libya's army has blockaded the militia blamed for Ambassador Chris Stevens' death, squeezing  Ansar al-Sharia  into an eastern wooded region. But the fight is far from over, officials say: "They have 150 to 200 men and 17 vehicles, Toyotas, and four-by-fours," notes a commander. "These people...