For years now the spammers have been able to spam without much threat happening to them for their actions. If control is not in the makings, and the people using email as a means to keep up with business, and home alike.... Soon I feel people will revert back to snail mail, and give up on email all together. It's just becoming too much of a headache. You have some businesses that have their own email handlers wasting up to four and five hours per day sorting through it all. I know of two small businesses so far that have reverted back to snail mail because they could not hire the extra help needed for email.
There are no clear cut laws, or even software that cuts all of the spam out. People are giving up.