Maybe they should show what a *real* massacre looks like

Jonah Goldberg points out that if Israel was planning to massacre the people on board the Turkish flotilla, they're really, really bad at it.

Question: If Israel is always hell-bent on murder, massacres, and genocide, why is it so bad at it? If its battle plan called for a slaughter, why kill "only" nine people? Why not sink all of the boats?

It must be tempting to demonstrate what a real massacre would look like.