"Reflections on trusting trust" [1] may be necessary here. When you install Truecrypt, do you download a packaged binary app? Or do you compile it from source? Do you trust your compiler?
Until you know what the backdoor actually _is_, please don't stop just because you audited the source code.
Until you know what the backdoor actually _is_, please don't stop just because you audited the source code.
[1] a good summary is at http://en.wikipedia.org/wiki/Backdoor_%28computing%29#Reflec...