After the Tahoe shooting, Michael tells Tom, "At his moment you're the only one I completely trust." I and others here believed Michael. Now, I'm not so sure about "completely":
At that moment, Michael needed Tom more than he had since the Great Massacre of 1955. But he needed Tom on his terms, under his control.
"There's a lot I can't tell you -- and I now that's upset you in the past."
So, getting back to the theme of this thread, if Tom's the only one Michael can completely trust, why is he still saying, "There's lot I can't tell you"?
TB, I think you're completely right about Mike's do everything on his terms. There was nothing he couldn't tell Tom; there were things he didn't want to tell Tom and, besides, he didn't have to say that to Tom anyway. It was just Mike's way of manipulating Tom and trying to look like he was doing Tom a favor. Mike was both good cop and bad cop.