Social Security

Quick question for our smart hydrabloggers. This CNN article about Social Security Privatization (I'm pro) says that Bush's plan will cost about $3 trillion, but then goes on to say that the 75 year shortfall is $3.7 trillion. My understanding of Bush's number is that its a short term hit, but if the long term cost is $3.7 trillion, I have to question my stance here. Not enough long term benefit to offset the short term hit. If the $3 trln is over the same span as the $3.7 that's also different. Can either of you shed some light on this?

http://www.cnn.com/2004/ALLPOLITICS/11/10/social.security.ap/index.html