I think the title sounds much to factual for such a vague statement. They that they are in principle able to decrypt such encryption, that can mean anything fro

I think the title sounds much to factual for such a vague statement. They that they are in principle able to decrypt such encryption, that can mean anything from "we can if the key is weak" over "there is a law which permits us to install a backdoor on your pc" to "we can beat you up until you tell us your password". And it is in the best interest of german intelligence agencies to make such a vague statement. If they would admit that they are unable to break pgp, that would be taken as a software recommendation by everyone who is afraid of them.