alexander marquardt, abc news, soma, turkey. the vigil in nigeria marking one month since the more than 200 girls were kidnapped. they carried candles and sang for the release of the kidnapping victims. the father of two abducted girls said he has not been sleeping or reading well since the girls were kidnapped but said the vigil gave him hope and courage. president obama in new york this morning where he will attend dedication ceremonies for the 9/11 museum. among the powerful images on display are the survivor stair that is helped hundreds escape the world trade center and delivered them to safety on 9/11. the museum opens may 21st. those opening day tickets are already sold out. you can see this morning's ceremony at 10:10 a.m. eastern time right here on abc. if you are looking for work, north dakota is calling. the state has launched a major campaign to find workers to fill 25,000 jobs thanks to the booming oil industry. north dakota has the fastest growing economy in the country. the unemployment rate is just over 2.5%.