Will spam be the weapon of the new terrorists?

It gets less insignificant if you start to look at the larger picture. If we multiply the $1400 spam costs me per year by the number of websites out there it gets even worse. Netcraft reports about 45 million active websites out there. If only 10% are "spamable" that gives us 4.5 million sites being attacked by spam. Multiplying the $1400 needed for anti-spam measures means that there is a drain on the global economy of at least $6.3 BILLION every year. To put that in perspective, the education budget of the province of Alberta is $7.6 billion dollars for primary, secondary and post secondary education and Canada's foreign aid budget is roughly 2.7 billion dollars. The actual cost is likely much more than I've estimated as larger sites would have to spend even more than I do to combat spam. I also haven't touched email spam which would add even more to the total.
Now this is the damage caused by a relatively small group of uncoordinated people who's sole motivation is greed. No imagine the drain and damage to the economy if someone with an ax to grind were to look at this as a way of getting back at the West. Various attacks could be made of commercial sites costing billions to deal with. If enough spam were to be sent, it could clog up the internet, slowing it down, costing even more money, not just in dealing with the spam, but in transporting it. A terror organization could, by using the same tools that the spammers use, do a significant amount of economic damage to the world. Of course, the spammers would be glad to help them, since the tools would be bought from the spammers.
Even if there were no attempt to damage the economy, spamming could be a great tool for a terror organization to raise money. Through stock pump-and-dumb schemes and internet sex sites, terrorists could raise millions to fund more conventional terror operations, not to mention what could be raised through phishing sites. This money would be hard to trace and for the most part would go unnoticed by governments amid the large amount of non-terror spamming going on.
What can be done about it? Well governments would have to take a hard line against spamming. This isn't likely to happen in the western world as the companies that use it to sell their wares have the ears of government and prevent any real anti-spam legislation from being enacted. So we go along basically ignoring the problem, hoping it will not happen. I would suggest that it's only a matter of time till it does, and that it could be prevented if we start now.