Via Media Matters
"I want to send [Media Matters] a cake, but I want something to be inside the cake, and I might be put in prison if that happens." - Bill O'Reilly
Ok, here's a general rule: joking about killing or poisoning the groups or person that you routinely tell your "T-Warriors" to hate is not responsible behavior, nor is it behavior acceptable for a professional journalist, or for someone who claims to be one.
You never know who in your audience might actually thinking doing some "S-P" killing is a good idea. Case in point.