The chain of trust has not been broken. There was never a chain of trust to break.
The global internet has no chain of trust or secure* encryption technologies. We have, at best, a series or half-hearted attempts which make it difficult or minor private interests to intercept communications. But we have no-way whatsoever of dealing with NSA sized, centrally managed state backed and internet wide surveillance and control.
The CA system is by now a farce, and a default means of breaking security. The Web of Trust is an only slightly more sophisticated improvement, but again is a joke compared to an actual distributed authentication method like, say, Bitcoin. Unfortunately, the latter is dominated by libertarians, swindlers, and above all a few professionalised central mining operations, so there's no solace there either. The web needs distributed, anonymous, encrypted, secure, robust, usuable and un-commandeerable communication technologies right now. The Network will be turned into a dystopian panopticon at the current rate of software development.
Whether the current generation of walled garden, App-raised programmers is up to this task remains to be seen.
*To appease the new Crypto-dogma neophytes -- reasonably secure for the digital age.