air space, whether china or japan controls some islands out in this patch of the east china sea. everyone is claiming that the control them. this is far from resolved. so expect to see more flights by the u.s. through this area making the point that china can make its demands, but in international air space the u.s. military will travel as it sees fit. erin? >> all right, barbara, thank you very much. obviously a crucial development for the u.s. especially as it's dealing with what's going on in iran. we have much more on that because there's a huge development on that iran deal later in the program. our third story outfront, 30 years for amanda knox is the sentence an italian prosecutor wants knox to serve for what he says is the murder of her british roommate. knox's original conviction was overturned in 2011 because of a quote lack of evidence. but italy's supreme court decided last year to retry the case. it says the jury didn't consider all the evidence. our legal analyst paul callen is outfront. paul we've talked a little bit