[PastaMonster]

And they got their way if my memory doesn't fail me. DEFCON talk was cancelled.

[TylerLives]

What was the topic of the talk?

[WarOnPrivacy]

I couldn't find out. This is as close as I came.

"I had the FBI come threaten me to stop a talk that isn't as scary as 20 SCADA bugs," Graham says.

ref: https://www.darkreading.com/vulnerabilities---threats/power-... (2012)