Geographic Add Targeting For Apsense Campaigns?

I have a recommendation I'd like to present to the powers that be on Apsense.

I'm Not sure if its something that would be able to be accomplished, but one of the problems I've noticed with Apsense is, we get alot of useless (untargeted) traffic from our campaigns resulting in wasted credits from other countries. (outside the US & Canada).

Many member(s) programs are only availble to US and Canadian Residents.

I would like to see us be able to target specific geographic locations. This would guarantee that our campaign adds are seen by who we want and not have all our credits wasted by the spammers who use it simply to gather credits.

UPDATED: In response to the post by Paula concerning not being able to view sites and earn credits since she does not live in the USA. (which I hadnt considered)

One of the options could be "no targeting". meaning that you do not have to choose specific area's. I'm thinking that many folks will want to target everyone, so You would still have pleanty of adds to view to acquire your credits.

The folks that choose "targeted" areas could be charged extra credits to use this feature.

What are your thoughts on this?

Laura