Hmm, well, yes and no. IIRC, the only open source software that has its source audited is BSD, and auditing software code isn't trivial. Open source just indicates that someone can inspect and audit the code, not that it is guaranteed backdoor free. Though I agree it is generally a better option than the closed alternatives.
Of course even if your software is 100% backdoor free, it means little when your ISP and hardware manufacturers could be collaborating with the FBI.
Incompetent FBI + lots of expensive toys and privileges = bad for all americans. Remember Ruby Ridge and Waco...
"Whoever fights monsters should see to it that in the process he does not become a monster. When you look into the abyss, the abyss looks into you." -- Nietzsche