The District of Columbia Homeland Security and Emergency Management Agency (HSEMA) has launched a redesigned web site today in the hopes that it will help D.C. residents better prepare for emergencies. The site, called 72hours.dc.gov, lists emergency resource information by topic, much like the previous Emergency Information Center web site, and offers four relatively simple steps the city hopes each of us will take now, before an actual emergency happens. The steps are 1) Get......