she will arrive in mexico city today and anne kornblut is the reporter for the "washington post."e're told the visit is going to include a lot of time with mexico's first lady, but can you tell us more about the significance of her visit in haiti itself? >> well, this was a trip that they can't under wraps. we only got word of it after she had landed. she's there with dr. biden. it's a great, good will gesture for the administration. she has not done any solo travel as first lady, and so to mark her big debut on the world stage, it seemed appropriate to them that she would talk to the victims and do a quick tour. >> her next stop, mexico. this has been described by some as comparable to john f. kennedy's wife and how she was welcomed like a hero. the streets were lined with literally more than a million people to greet her. she's president obama's wife will be meet wg the first lady of mexico. what do they have on tap for this visit? >> it's actually a quick trip. like 40 hours on the ground altogether. she's going to do some cultural visits. she's going to meet with children, you