. >> diplomatic editor james bayes at his post. >>> president barack obama is meeting with the largest opposition group. we'll have more on that at 4:30. the u.s. is actively involved in the search for more than 200 school girls ab ducted last month. the pentagon said u.s. surveillance planes are flying missions over a remote part of nigeria, as part of a growing search effort. this, as nigeria says, it's willing to talk with a radical group boko haram, about securing the girl's release. rosalind jordan has more from washington. >> supposedly the commanding general of africa, the u.s. military component that is concerned with security issues in sub-saharan africa. general david rodriguez is said to be in abuja. if it's true that general rodriguez is on the ground, it is a sign of how seriously the u.s. is taking its efforts to help the nigerian government recover the girls and return them safe to their family. it is, of course, on top of the 30 or so personnel not just from the u.s. military, but from the state department, from the usa id, fbi and intelligence agencies providing guidan