A massive exodus to where exactly?
When an organization like the RSA can be bought, what in the hell makes you think the rest aren't too, regardless of country.
Where else. To find programers and cryptographers to develop their own encryption standard. If anything, actions like this will push other countries into what they can only trust in themselves. This also applies to businesses, and you can be sure that in the next few years you'll see an explosive growth in in-house and collab's between friendly companies.