Ask HN: I'm looking for a hacking talk that discussed USGOV logos and satellites

I'm looking for a security/hacking talk. I have scoured the archives of CCC and Defcon but to no avail. My memory has provided the following:

* Man presenter who covered privacy and surveillance * He talked about different US government agency patches and untangled hidden meanings * He is a photographer that uncovered fake businesses setup by the US government to hide their activity * I'm pretty sure it was at CCC, but could be wrong

I'm sure this rings a bell for someone, but it's escaping me.