Good morning, Washington. With the Christmas holiday looming, things are slowing down in workplaces around the region. Well, most workplaces, anyway — D.C.’s firefighters seem to be keeping plenty busy. Yesterday, of course, there was the fire at the Eisenhower Executive Office Building. Since then there’s been a two alarm fire at the Chinatown Red Roof Inn, and this impressive gathering of firefighters just south of Logan around 6 p.m. last night. Here’s hoping…