The only real possibility is that Michelle could be delivering a personal message from the President—a message he wants no one else to see or hear except the recipient. Maybe it has to do with Iran and a possible attack in the next few months.
is she going to wear a burka?
No, that's not the only real possibility.
There's a host of other means to deliver "personal" messages.
She is NOT a member of the elected government of our country, IF that still matters.
Why the silence in our press about her meetings with the named individuals?