The next headline will read:

"Government demands list of customers who opt-in for pornography"


and the one after that will read:

"Government searches opt-in porn list for possible suspects in _____ crime"


and the one after that will read:

"Government conducts random searches of members of opt-in list for (insert type of contraband).  _____ judge claims no warrant required because it treats all opt-in members the same"