re: Republicans to subpoena whistleblower to testify in public hearing

What safely concerns? From trump? Trump has long known who this spy was.

If they are so scared [they aren't] of trump.. then shouldn't they make their identity known to the whole world? So that evil drumph doesn't kill him in the shadows?

The only purpose of continuing to try to hide this spy's identity, is to try to make sure most of the public don't realize the spy is just a spy who was tasked to illegally spy on a sitting president.