What is DNI on Twitter?

I went on twitter to search for the latests posts from the DNI ( as in national sec info ) and stumbled across something gross.

Somebody tell me what in the actual **** is 'dni' on twitter !?

https://mobile.twitter.com/search?q=dni

>>10939874

and why does twatter allow this !?

>>10939917

it's minors posting about dating , I think . so awful

>>10938486

at this point , let it all fly. no one needs to be held hostage by fbi , cia or anyone else.