Is there a list somewhere of who has already qualified?
Top ten countries at the worlds appears to be:
1.France 2. Argentina 3. Australia 4. Italy 5. New Zealand 6. Switzerland 7. Britain 8. Denmark 9. Austria 10. Netherlands -------------------- 11. Portugal 12. Russia 13. German 14. Greece 15. USA 16. Canada etc.
If this list is right and reflects the current qualifications. The a US team will have to jump a couple of rungs and if they cant they'd be best off if the Canadian team did.
If your goal was to go to the Olympics and you didn't care about country. Then the trick would be to find a way to represent an Island in the Pacific. With Australia and New Zealand both qualified the Oceania slot is wide open.