Project Black Knife found some of the Seekers but was inexplicably not pursued. Simmons certainly wasn't cleared in a lot of things. Sector 7 higher ups may have been aware of efforts to subvert both nation's space programs yet played low key so as to not blow the Allspark's location. Soundwave had spies within the governments. Some of those may as well be double agents working for Sector 7. A three way espionage between Sector 7, the Russians, and Soundwave.