Moral panic was a term coined by Goode and Ben-Yehuda back in '94. It means:
<< "A moral panic is characterised by the feeling, held by a substantial number of the members of a given society, that evil-doers pose a threat to the society and to the moral order as a consequence of their behaviour and, therefore, "something should be done" about them and their behaviour." (p. 31). >>
A very good example is satanic rituals and baby killings. People in the late 80s and early 90s thought that satanic baby killings were occuring all across the US. Geraldo had dozens of shows about this. It was on Hard Copy and tabloid news. People were coming out saying that they know somebody or suspect somebody of this. But not a single incident was ever reported or discovered. Not a single one.
Another is Florida and their tourist industry. Back in the mid 90s, there was a few car jackings and deaths of tourists by criminals. This resulted in the rest of the world, especially the Europeans who travelled to Florida, to go in a state of moral panic that Florida is especially crime ridden, and that criminals specifically target tourists. Hell, even today, if you book a vacation to Florida, they give you pamphlets of information on how to look less like a tourist so you're not specifically targetted. But the truth is, is that given the number of tourists that do visit Florida, the crime rate against tourists and normal citizens are the same.