I don't think the USA is weaker, but rather the rest of the world has gotten better. Els, Singh and Goosen all probably could have been #1 in the world between 1990-1995 when Americans were at their strongest. But even though overall I think the world is better, Americans are still doing pretty well in the majors. They've taken 7 of the last 9 British Opens, which is unheard of. They've got 5 of the last 6 PGAs, and have pretty well in the US Open and Masters as well.