Is it prudent to buy an American (or co-branded) vehicle right now?

I am considering buying a second car for the growing family. I had a few wagons in mind, such as Subaru, Volvo, Audi and Saab. However, Volvo was acquired by Ford, and Saab by GM. Given the current climate of potential bankruptcy by the big 3 automakers (and their potential dealers and suppliers), should I forgo buying a car right now, or stick to more solvent companies like the German and Japanese carmakers? In the same vein, many of the American carmakers are slashing prices, so it might make for a great buying opportunity as they try to get rid of inventory.