Incorrect, no bath salts were found in the Miami attackers body [1]. The second story in Louisiana hasn't yet proven to be bath salts and he only bit a part of the guys face in an attack - he want cannabalising.
Secondly, very little is known about bath salts (mephedrone, MDPV).
In fact it's been shown to be less addictive than cocaine.
> "In a survey of UK users who had previously taken cocaine, most users found it produced a better-quality and longer-lasting high, was less addictive and carried the same risk as using cocaine.[2]"
So if cocaine is more addictive, why isn't it equally considered dangerous?
This type of misinformation is caused by the media and propagated by people who have a) never done the drug and b) spent little time researching it, such as yourself.
[1] http://news.yahoo.com/blogs/lookout/bath-salts-marijuana-fac...
[2] http://en.wikipedia.org/wiki/Mephedrone#Intended_effects