The FOSDEM 2014 keynote by Poul-Henning Kamp (Varnish and Ntimed lead architect) is very interesting:
This is a ficticious NSA briefing I gave as the closing keynote at FOSDEM 2014
The intent was to make people laugh and think, but I challenge anybody to prove it untrue.
It's all fiction, but it's fiction by someone with tons of experience in open source projects.
Here's the 45 minute video.
And then there is How the NSA (may have) put a backdoor in RSA’s cryptography: A technical primer on CloudFlare's blog.
