Print your boarding pass - the mobile scanner at security (that's right, scanner, not scanners) is always down due to dead batteries... Way to go TSA..
BWI's electrical outlets suck. There aren't many of 'em, and most of the ones they do have (in D concourse, at least) won't hold onto a plug. Find an unoccupied check-in desk and use its power strip.
Baltimore/Washington International Thurgood Marshall Airport is an international airport serving the Baltimore-Washington Metropolitan Area in the United States.