Some postal workers in Washington, D.C. were evacuated on Friday after an incendiary device ignited inside a package addressed to U.S. Department of Homeland Security Secretary Janet Napolitano. The Baltimore Sun reported the package was similar in design and shape to packages received Thursday in Maryland, addressed to the state’s Democratic governor Martin O’Malley and the state’s transportation secretary. In Maryland, the incendiary devices flared up and singed the fingers of Maryland employees handling mail at state government buildings.