Are you reading this, Five Eyes?
This is exactly what was predicted. Even William Gibson predicted state sponsored malware leakage which, make no bones about it, is what this is, long before the Internet became widespread, albeit in fiction. Kuang Grade Mk 11, anyone?
At the risk of a logical fallacy, I suspect this is the tip of a very large iceberg. And they want us to trust them with back-door encryption? Not on your sodding nelly!