dr. michael fox is economic adviser to german chancellor angela merkel. when i spoke to him, i asked why his government was so quick to reject greece's offer when some quite liked it. >> first of all, we had a very clear agreement on monday on the last economic meeting with finance ministers. they said very clear that all the agreements which has been made have to be accepted by the greek government. and the letter which has been sent by mr. varoufakis, did not snow that he was accepting the so-called memorandum of understanding, which was the one that gave all the austerity measures or showed all the austerity measures. and he didn't want to accept the austerity measures. that was very clear. it was an offense against what had been okayed on monday. and therefore, i mean it's logical that we can accept it. >> yes, but doctor this is an negotiation, isn't it? there's some give and some take and greece has backed down the middle of this. >> it's not give and take. we are talking about taxpayers' money, not only in german but also all over euro. the taxpaye