brian:leyy tell us what is happening. ainsley: another fox news aletterr. ip didips announced south korea and singapore intercepted nuclear materials headed to iran. south korea officials seized more than 400 suspicious tubes that are used for nuclear facilities and in singapore nuclear powder found on a ship bound for iran. the u.n. and sanctions committee will begin an investigation this morning. new york time said that four journalist reporting on the conflict in libya are missing. lindsay ottrio and tyler hicks and steven farrell and prize winning reporter in burette anthony shadid were heard from on tuesday . they were covering the rebel