It seems like a dirty tactic for a federal law to be passed making websites that promote prostitution illegal while the legality of actual prostitution is left up to the individual states to decide. I bet this isn't the first time this type of tactic has been employed.
Would you rather your daughter hooking on the street making barely enough to stay alive because her pimp takes all the money or in a safe place with healthcare, police protection, and high earnings?
No, I live in Brazil where prostitution is not illegal but profiting from prostitutes is.
So brothels and pimping are illegal - although there are plenty brothels, you only see pimping on very high level escorts and I never saw a place with sex slaves (but I saw this kind of place in other countries).
So this is my point, prostitution should be legal and physically safe both for prostitutes and Johns (nobody being beaten, mugged or otherwise ripped off) the same way tobacco smoking is legal. It is my opinion about safe recreational drugs as well. And like tobacco, companies should be prevented from mass-advertising.
