Snitches get stitches! Can buy such a T-Shirt in DC, many places.
That may happen when criminals are on trial, and is not relevant in this case, especially when no charges against anyone in the Administration, having to do with the Mueller Investigation instructions from the former Acting Attorney General.
Those who worry about telling the truth, when they were asked to testify and tell the truth, should not be too concerned. The truth shall set you free...
I am sure our President is aware about most folks in the Administration, and knows who is trustworthy, and valued, and will continue to treat all fairly, no matter what Democrats may quote them as having said, if the report leaks from the various Democrat lead House committees.