Czech & Slovak humor is something I can relate to well, most likely since my dad's grandparents came from this region of Europe. It's a humor that holds nothing back -- nothing sacred -- for if humor can't encounter any hypothetical situation or topic, then what can?
During the summer of 2007, a Czech group known as Ztohoven (think of a modern version of Ken Kesey's Merry Pranksters) hacked into a morning TV segment in which cameras pan across the country's terrain. What resulted was a fairly realistic rendition of a nuclear bomb going off in some godforsaken village during the breakfast hours.
Immediately, both TV station representatives and other municipal authorities promised justice against these "terror-inciting hackers" (paraphrase). First, read Ztohoven's response, then watch the video footage and judge for yourself how much harm could possibly come of it.
To me, it seems anyone with half a brain could tell this was a prank simply by switching to other channels. Remember 9/11? On every channel. If something like this were real, it too would be on every channel.