How many buildings were damaged by the planes?

M: Hello, Li Ping.
W: Hi, how is New York now?
M: It’s still terrible. Citizens all feel worried about their safety since Tuesday’s attack. You see, two planes ploughed into New York’s World Trade Center, destroying two highest buildings in the city, a third plane seriously damaged the Pentagon.
W: We have known that. What we want to know now is how many people were killed?
M: 40,000 people could work in the tower, so lives lost are expected to be thousands. And at least 202 firefighters were still missing and 259 service members had not been included. That’s really terrible.
W: We’re all very sad at this. Take care of yourself. If there is anything new, just telephone US.