Water Convention facilitates negotiations between Democratic Republic of Congo and Zambia on the establishment of the Luapula River and Lake Mweru Authority
place. reporter: in congress, most republicans and many democrats voice deep skepticism of president obama s approach. we have let them out of the trap. reporter: they are preparing even more tougher sanctions which if passed would effectively kill this deal. another diplomatic astonishment. it turns out there have been months of unprecedented secret talks between the u.s. and iran to lay the groundwork for geneva. five meetings this year in the gulf nation of oman and elsewhere this region, u.s. and iranian officials meeting face to face. president obama keeping some of the closest u.s. allies, including israel, in the dark as the agreement took shape in the secret talks. secretary of state kerry came here to london to work with allies on the next steps, planning negotiations to cut the next deal and making sure iran abides by this one. terry moran, abc news, london. caroline kennedy, the new u.s. ambassador to japan, heads to that nation s tsunami-ravaged