If the Washington area were hit by a chemical or biological attack, Fairfax County students would be kept in locked-down schools, inaccessible to parents, while teachers helped undress and shower any who needed decontamination, according to a plan adopted by school authorities. In a throwback to the “duck-and-cover” exercises of the 1950s and ’60s, schools will begin drills — minus the shower scenario — as early as this fall to prepare for potential attacks, Fairfax school security officials said. While the county is the first in the Washington region to develop school procedures for dealing with chemical attacks, the U.S. Department of Education plans to recommend this spring that school systems across the nation do likewise, federal officials said. Full Story