Read the following posted by an Angeleno over on another webboard that I read.

 Dear Neighbor:

I am contacting you on behalf of ABC Studios. We are working on the second season of the ABC television series entitled "brothers & sisters" starring Sally Field, Calista Flockhart, Rachel Griffiths and Rob Lowe.

We will be filming some scenes at the National Cemetery this Friday, August 10 between the hours of approximately 7:00am and 7:00pm. One of the scenes will involve a military funeral with a 21 gun salute. There may be multiple takes of this scene.

etc...

Source: http://www.gaychristian.net/community/showtopic.php?fid/24/tid/13802810/pid/14148851/post/last/#LAST