I imagine he is doing all he can in trying to shutdown the border and arresting traffickers like never b4. I share your frustration that it cant all just come out and wonder what is stopping the truth from being called out now.  But we know the FBI still has deep state influence from their arrest of the China's CEO just b4 Trump met with China to settle the trade war.  They are still in control of the weather as witnessed by the rash of volcano eruptions.  And they can wipe an entire town from the face of the Earth as they did in California last month.  We are their hostages and Trump a can only do so much without retaliation.