Last week I spoke with the Department of Homeland Security about Immigration. I received some interesting data (about 15 minutes before deadline). The initial story was pressed by ICE. The full press release can be seen here.
Branson's crop of immigrants are as likely to come from the former Soviet Bloc than anywhere else. A dedicated effort for Eastern European labor has created a black market for citizenship credentials.
A large percentage come for Ukraine, internationally known for the Chernobyl disaster. Some working illegally 200 feet from where I'm sitting, grew up less than 50 miles from the nuclear wasteland and speak of radiation sickness with great familiarity.