How the Oscar Producers Carried Out a Mission as Secret as the
One Depicted in 'Argo': Getting Michelle Obama to Present the
Award for Best Picture. The Connection to FDR's Fireside Chats
LA Times    "Producers enacted a number of efforts to ensure
secrecy. To reduce the risk of a leak, ABC News' political
bureau, rather than its entertainment division, was involved in
the physical production. Producers and the first lady's office
also found a room that wouldn't be needed all weekend, since
technicians needed to begin set-up on Saturday. The Diplomatic
Reception Room -- a space that has enjoyed myriad uses over the
years, including the site for FDR's fireside chats -- fit the
bill.   To read all the details about how the secret was kept
and the logistics of how the presentation happened, click on the
link above to the original article.