Black Hat is a fucking joke!

“Exactly,” responded Alexander. “We stand for freedom.”
“Bullshit!” McCoy shouted.
“Not bad,” Alexander said, as applause broke out in the crowd.
[...]
“Read the constitution!” shouted McCoy in one last heckle.
“I have. So should you,” responded Alexander to another round of applause.


http://www.forbes.com/sites/andygreenberg/2013/07/31/nsa-director-heckled-at-conference-as-he-asks-for-security-communitys-understanding/

Admission to Blackhat is like $1500. You're looking at $3K with all expenses just to go. Of course it only attracts assholes who work for large companies with an attitude that `privacy is dead'. Who else is going to pay for that in a mostly-worthless conference?