[raverbashing]

3DES might have been a bad example.

My point is that even if today some sizes and lengths seem only of theoretical concern, tomorrow there might be a vulnerability, a new approach to the problem, or even natural technological evolution that might turn it into a practical attack (even when it seems impossible today)

[tptacek]

But that's true of every cryptographic primitive. You can't make reasoned decisions based on that logic.