i'm morgan radford morgan radford. >> confrontations in crimea, what can and should western nations do. the death toll rises as the u.n. presses for answerses. a devastating picture hammers home the suffering of children in syria. e-cigarettes, are they a gate way to the real thing. hi, i'm antonio mora, welcome to "consider this," here is more of what's ahead.

i'm morgan radford morgan radford. >> confrontations in crimea, what can and should western nations do. the death toll rises as the u.n. presses for answerses. a devastating picture hammers home the suffering of children in syria. e-cigarettes, are they a gate way to the real thing. hi, i'm antonio mora, welcome to "consider this," here is more of what's ahead. >> in ukraine the crisis over crimea continues. >> russia asking crimea to vote to join its federation. >> whether it's about talks or sanctions, the russians are still very voping. . >> the united nations is asking venezuela for permission to send in independent observers. >> the occupation is using motorcycle gangs to break up demonstrations. >> any escalation of conflict results in the ukrainian team leading. >> they have chosen not to send a delegation. >> e-cigarettes... >> it's a substitute nicotine deliver system. >> e-cigarette use by middle and high school students more than doubled. >> it's increasing rapidly. person massed armed men in camouflage uniforms stopped european military observers from entering the country f

morgan radford. stay with us for more news in 2 minutes. don't go anywhere. >> good morning and welcome to al jazeera america. i'm morgan radford. here are the stories we are follow. hundreds of gun many surrounded a base blocking soldiers from leaving. it's part of a crisis where russia is preparing to a military intervention. the ukraine calling on every one of the military servists to mobilise. the fallout has begun. three countries have opted out. overin nigeria two separate attacks. twin car bombs exploded in a marketplace killing 50 people. the attack was followed by 40 miles away where gunmen raided a village and shot people preparing for praise. both took place in the north-east of the country. home to boko haram. >> 10 attackers armed with knives and dressed in black stabbed 29 to death. police killed four and they are searching for others. one has been arrested. >> the sixth cabinet in egypt since the ousting of hosni mubarak. >> those are the headlines, i'm morganadford "killing the messenger - the deadly cost of news" up next. >> [gunshot]. >> there's a lot of very brave