They’re refusing to release any records on grounds of national security:
…The FBI is refusing to hand over documents “in the interest of national defense or foreign policy.” In other words, to the FBI, political protests about economic policy pose an unspecified threat to national security.
I’d say that’s a pretty blatant admission of guilt.
If they invoke “state secrets privilege”, that’s as good as signing a confession.
Gee, where is the Hague when you need it? Oh right. I guess that’s in the past. International law is different now.