Profile of a Traitor

Russian agent Ted Hall gets a sympathetic treatment in “The Compassionate Spy.”

You may think you’ve heard everything about the mechanics of the nuclear dawn by now, given the raves for Oppenheimer, the gripping biopic on the “father” of the atomic bomb, J. Robert Oppenheimer, the spindly physicist who headed the top secret Manhattan Project in the New Mexico desert.

But there’s a new film coming out about another scientist who work…