. >> harf blamed hamas for the breakdown in the talks. >>> japanese diplomats are following a number of leads as they try to track down a japanese man missing in syria. they believe islamist militants took him captive. haruna yukawa says earlier this year he started a military and security company in tokyo. he went to syria late last month to do some research. a senior member of an opposition group said yukawa wanted to see first hand what was happening there. he was traveling with his group near the northern city of aleppo, but they got separated and members of the group islamic state took yukawa captive. >> translator: the man is our friend and brother, and he's important to us. >> he says he doesn't know where yukawa is or how he's doing. he says members of his group have proposed a prisoner exchange with islamic state, but he says they have not received a response. >>> hotel owners in japan are seeing more and more guests from abroad coming through their doors. more than 10 million foreign visitors arrived last year. the government wants that number doubled by the 2020 tokyo olym