IC: By the way, for those of you old enough to remember the 5 million Japanese who came to America between 1970-75 as part of the "Noah's Ark 69" program, how do you think Nixon handled everything? Firstly, we do have to remember that, although most Westerners were generally accepting of the new arrivals, many non-liberal types east of the Rockies were not happy about it; some folks may still vividly remember the Cleveland riots in '71, not to mention the ones all over several of the Southern states in the autumn of '74(along with the lynchings in Doddsville, MS, Edgefield, S.C., and Tyler, Texas).
Sure, Nixon did make a good effort to stop the violence from escalating, but could he have gone further? Most liberals and many moderates applauded his actions, but he lost a lot of support from the more prejudiced sections of the right, especially in the South.
When one considers how five million had to leave the country, it's kind of amazing how Japan managed to forge the Manila Security Pact and become a major power. But they managed it - which probably says a huge amount about the people and their sheer determination.
In answer to your question... I think that Nixon did what he could with the tools he had available. Of course, states' rights activists took major issue with the expansion of the FBI and their use to investigate anti-immigrant crimes, but it was really the only thing he could do.
Mind you, unpleasant though that part of American history was... It did contribute massively to the growth of Civil Rights. Without it, America probably wouldn't have got so far as it has today.