WASHINGTON Former President Bill Clinton says more women and minorities must be encouraged to study math and engineering in order to fill the dwindling ranks of scientists. Clinton spoke to the National Education Association about the growing concern among scientists and universities that tougher immigration requirements since Nine-Eleven make it harder for the country to attract brain power from overseas. As he puts it, "We may have kept a few bombs out of our country, but we also kept thousands and thousands of brains out." He says the way to boost U-S engineering and science is to focus on American...