Pointless Argument
Encryption is an algorithm, not an application. You can weaken the encryption used in a particular application but that won't weaken encryption in general. Encryption algorithms are public -- they're useless if they rely on secrecy -- so there's nothing stopping the bad guys from rolling their own applications.
Its a complex subject but unfortunately most of the politicians and pundits going on about it are still at the "secret writing and decoder ring" level of sophistication.