confirm as dead. that s extremely unfortunate. 32 years ago, exactly the same date, an earthquake that hit mexico city killed thousands of people. major buildings collapsed. right now we re talking about 50 sites. this is still a very dramatic tragedy and all of mexico is putting effort into the rescue operations. but it s clearly that particularly modern buildings, the tallest buildings that you see around mexico city held up very well. so the engineering codes, the construction codes, codes have clearly changed, and also the culture on how to react immediately to an earthquake. people in mexico are we are all very much aware of what to do in the face of an earthquake. i think that kind of response and the preparation was very evidently effective in preventing this from being a larger disaster. this is an immense tragedy.