From an article in yesterday's Washington Post:

Footnote: ABC has barred its journalists from wearing lapel flags such as the one sported by White House correspondent Terry Moran.

"Especially in a time of national crisis, the most patriotic thing journalists can do is to remain as objective as possible," says spokesman Jeffrey Schneider. "That does not mean journalists are not patriots. All of us are at a time like this. But we cannot signal how we feel about a cause, even a justified and just cause, through some sort of outward symbol."