From the comments section of the video of that very performance (https://youtu.be/PEkrT47xGFY)
So, if it's a White Hat move then you'd have to explain how everybody that would attend something like this is keeping quiet.
Black Hat move, no explanation needed.
It's from a Politico bullet points web summary page.
They don't really source anything they've stated.
Gonna go surf the DHS/DOJ web sites to see if any info is there…