A photographer, Moises Saman, and a correspondent, Matthew McAllester, who both work for Newsday disappeared from their hotel in Baghdad a week ago. The newspaper thinks the two have been detained by Iraqi authorities. Their families have appealed to Jesse Jackson to help locate their loved ones and secure their release.

Meanwhile, four other journalists remain missing. Johan Rydeng Spanner, a freelance photographer with a Danish daily, and Molly Bingham, a U.S. freelance photographer, were last seen in Baghdad a week ago being escorted by Iraqi officials from the Palestine Hotel. And an ITV cameraman, Fred Nerac and translater Hussein Othman were last seen in southern Iraq on March 22 when their car came under apparent coalition forces fire.

What can be done? Joel Campagna, mideast coordinator of the Committee to Protect Journalists (CPJ), will be online Tuesday, April 1 at 1 p.m. ET, to discuss these cases and what CPJ and others are doing in the search for the jouralists. He will also talk about safety and access concerns in covering the war and embedded vs. non-embedded reporters and correspondents.

Submit your questions either before or during the discussion.

The Committee to Protect Journalists is a non-profit, nonpartisan organization dedicated to the global defense of press freedom.

Editor's Note: Washingtonpost.com moderators retain editorial control over Live Online discussions and choose the most relevant questions for guests and hosts; guests and hosts can decline to answer questions.

   |      |