Asian American students will outnumber white classmates for the first time in the freshman class at the region's most prestigious public magnet school this fall, a milestone reached as the number of African Americans and Hispanics has remained low and the Fairfax County School Board prepares to review the school's admission policy. At Thomas Jefferson High School for Science and Technology in the Alexandria area this year, more than 2,500 applicants vied for 485 seats. Asian American students got 219, or 45 percent of the total, while white students got 205, or 42 percent. About 38 percent of the school's...