The American Society for News Editors and Associated Press Media Editors have released a two-page guide to keeping a newsroom safe.

The tip sheet contains “some of the best wisdom of journalism organizations committed to journalist safety and the pursuit of a free and dedicated press corps.”

ASNE and APME also have asked newsrooms to observe a national moment of silence at 11:33 a.m. Pacific (2:33 p.m. Eastern) this Thursday in remembrance of the five killed a week earlier at the Annapolis (Md.) Capital Gazette.