news crashes on launch Mac

News crashes on launch on Macbook Pro. The error is "EXC_BAD_INSTRUCTION (SIGILL)". I cloned preferences from a known working system and it still crashes. I would like to reinstall, but I don't know how. When I Google it, it tells me how to uninstall it, which I'm now willing to do when I can't reinstall.

Please help me.

Dan Fleming, Professor Western Michigan University