UKUSA capabilities ARE far in excess of others. They are the only global adversary that happens to control DNS and the whole certificate stuff. Furthermore, all popular consumer operating systems (Windows, Mac OS X, Android and iOS) are created by American companies who can receive secret orders with gag clauses at any time to introduce custom functionality or vulnerabilities which are only meant for UKUSA use. Additionally, apps are increasingly installed from app stores, which are once again subject to American law. This means that any undesirable app created outside the UKUSA jurisdiction (e.g. Telegram or Threema) could be tampered with at the source. No other nations have ANY of these capabilities.