tony kushner, thank you so much. >> that is it for our program tonight.for watching amanpour on pbs and join us again next time. ♪ ♪ ♪ >> you're watching pbs. ♪ >> national presentation of "bbc world news" is made possible by contributions to your pbs station from viewers like you. thank you. >> welcome to "bbc news," broadcasting to viewers on north america on pbs and around the world. these are our top stories. the saudi led coalition says it will investigate an air strike which killed 29 children in yemen. the u.n. demands it be credible in romania, tens of thousands attend anti-government rallies. more than 200 are injured. turkey