Science and Race

An article from the NY Times that rolls up two of the topics I'm interested into one story: race and science. First off I am going to say that I am a big believer in science. I always have been and don't see that changing anytime soon. This topic however of whether one race is intellectually inferior or superior to another I think is an extremely difficult question to answer. First of all what exactly is intelligence? Does it mean that just because one person scores higher on a certain test that he/she is more intelligent than someone else? I would say no. I don't really understand how intelligence can be explained on a racial level. It just doesn't seem possible to me. The Nature vs. Nurture hypothesis also comes into play here I believe. Its undeniable that some people are born with abilities and traits that are not common. Sure, someone may have the knack for remember useless pieces of trivia or solving calculus problems, but does this make them more intelligent than someone else? Is intelligence measured by one's ability to solve problems? Memorize facts? Having a "good day" when the test is administered? I don't know. I'm not sure that science can answer the question of a correlation between race and mental capacity. I think the brain is too complex and there are too many other factors that affect the development of a human.