Duck! And Cover! FEMA, an agency within the DHS, already has a program preparing children for disasters. “FEMA for Kids” (www.fema.gov/kids) includes a pudgy and nervous-looking airplane leaking a trail of smoke, a hermit crab mascot named “Herman,” and a song with a rap beat: “Disaster . . . it can happen anywhere, “But we've got a few tips, so you can be prepared, “For floods, tornadoes, or even a 'quake, “You've got to be ready — so your heart don't break.” The more things change…