Fascinating. I registered to see if I can be a part of this, one of my deep interests is foreign affairs.
How so? Because I happen to know more about foreign affairs than the average person? My understanding was that anybody is eligible for it, though they prefer those who are college educated. I wouldn't say my knowledge is that of an expert; I just like to keep up to date. Perhaps having a person who is up to date on world events would throw off the study, I just don't know how much knowledge would be unacceptable.
Therein lies the problem. It's hard to measure exactly how much you know, it'd be easier to just accept self-professed "average", maybe even "otherwise disinterested" folks. I mean, this is all speculation, the study's specific parameters aren't public, as far as I could find....I just don't know how much knowledge would be unacceptable.