The Brief A visiting family’s D.C. trip turned costly after a pregnant rat chewed through their car’s wiring, causing about $15,000 in damage and leaving baby rats under the hood. Experts say the issue is not uncommon, as rodents are attracted to soy-based wiring and warm engines. D.C. officials report rising rodent activity, with over 3,000 burrows identified, and are ramping up control efforts while urging residents to report sightings.