president reagan when he said mr. gorbachev, tear down the wall. many people said how can he say that? but he was right. we have no guarantee. i cannot give you a guarantee for the wednesday talks or further talks and maybe nothing will come out of it but then we're called again about a new possibility and since we thought about every step of the way, will this be effective or not, we'll continue to do so. a lot of things have to be thought about and i'm very glass that with the american president, i've always been able to put all the cards on the table and discuss the pros and cons in my speech in munich i gave you clearly where i stand. but we'll continue to try it. i think that's why we're politicians. that's why we chose this profession. others have to do other things. researchers have to all the time find new things to explore and people have to -- and we have to see and the well-being, the prosperity of people is in short but we never have a guarantee that the policies we adopt...