The Government wants to paint my roof white?

I just read where the government wants to paint roofs white in the US. Now I'm sure they only mean buildings with flat tarred roofs, but I couldn't stop to think what my house would look like with a white roof. Shoot I got some leaks going on, so if the government wants to paint my roof white for free then I am all for it. It was a good read and made me wonder if white roofs would make a big difference for the environment.