Prospects for European Placement for American MBAs

I'm applying to Insead, LBS, IE, and IESE. I've heard conflicting reports on employment prospects for MBAs, especially for non-EU citizens. I'd love to work in Europe or South America after graduation, but I've heard lots of bad reports about restriction of working visas and a poor job market, especially in the UK and Western Europe. I've also seen optimistic placement reports from these schools, each at or above 90% placement within 3 months.

Does anyone have any information on how American graduates from the US are faring in the international job markets these days? Perhaps you've seen a blog post from American students or better statistical breakdowns detailing American placement in international offices?

Thanks!

*Update*

OK, I've been doing some research. First stop, the school's self published career reports. Here are my findings (Still a work in progress):

IE
Source: 2012 Placement Report
Of those from North America, students accepted positions in the following regions:
72%- North America
14%- Europe
12%- Latin America and Carribbean
2%- Asia

Notes: The school acknowledges in their report the challenges that tighter Visa restrictions are having on those wishing to find a job in Europe. But the fact that a vast majority of North Americans come back home worries me. Disappointingly, there are no statistics for career switchers showing how many students change job functions or industries.

IESE
Source: 2012 Placement Report
So, no breakdown detailing international mobility. However, they did list placement locations for the entire class:
37%- Europe
31%- Spain
12%- Latin America
11%- Asia
6%- North America
2%- Eastern Europe
1%- Africa

Notes: These numbers, while promising on the surface, are meaningless for our purposes unless we have more data to compare them against.

London Business School
Source: 2012 Placement Report
Wow! A whopping 71% of North Americans find a job abroad. There are no statistics here for job switchers.