Editors:
Questions, comments? Call MCT Graphics' U.S. editorial office at 202-383-6064 during these hours: 7 a.m. to 10 p.m. ET Monday through Friday. Our European editorial office can be reached at 45 86 14 55 60 during these hours: 0800 to 1600 CET Monday through Friday.

On weekends, two duty officers are available from 9 a.m. to 10 p.m. ET to handle questions and respond to major breaking news. If you have a question after consulting the latest MCT advisory, call them via cell phone at 202-368-7351 or 202-368-7352. If you leave a message, a duty officer will respond within 15 minutes.

On holidays, the MCT Graphics' U.S. editorial office is staffed from 8 a.m. to 5 p.m. ET. For assistance during those hours, call 202-383-6064; outside those hours, call the duty officers via cell phone at 202-368-7351 or 202-368-7352.