Note that "depending on the type and quality of the encryption" can mean "if you use 512-bit keys" (or e.g. use weak entropy to generate the keys). Indeed, that

Note that "depending on the type and quality of the encryption" can mean "if you use 512-bit keys" (or e.g. use weak entropy to generate the keys). Indeed, that's the likely explanation - if Germany really figured out how to decrypt best-practice PGP, they wouldn't be blabbing about it. (Also note that the Subject: line is unencrypted by design.)