Actually it's switching away from Nigeria now and countries like Cote D'Ivoire and Ghana are on the up, the Chinese are getting in on it too as are the Eastern Europeans/Russians. I'm a 419eater member and we are seeing a bigger mix of nationalities involved. The global loss to these scammers is impossible to estimate as the vast number of crimes goes unreported but it often is the elderly and/or financially desperate who fall for it. As was posted earlier people have flown out to meet the scammers and been murdered so it is not just cash at stake.