Tripe that the NY Times puts out

There are legitimate reasons to oppose Bush on Social Security. I think that I do, though, without more details, I can't say for sure yet. Apparently, Paul Krugman would rather lie and misrepresent than put forth a real argument. How can someone in the running for a Nobel Prize in economics (actually, The Prize in Economic Sciences in Memory of Alfred Nobel) not understand borrowing vs. opportunity costs?