I read recently how you posted Regrad as "having had enough".
He might suspect, he might assume but what does he actually "know"? (Beside what CIB agents and on the news (INS)?)
And since your spying agency is fairly new, your spies are barely setting up networks and have not infiltrated the higher level facades of TNO there is not alot your spies would be able to report.
You have to walk before you can run.
Now there are a number of ways to make this transition somewhat short and remain the bounds of reality (such as it is) but that's really for you to figure out.