First lady says she understands criticism of Obama

WASHINGTON (AP) -- Michelle Obama says being criticized is part of the president's job, and she understands why her husband has been on the receiving end.

In an interview on NBC's "Today" show, the first lady said the country is going through tough times with a recession and two wars. She said Americans are rightfully frustrated, and, she says, "the person in charge is the person folks look to."

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She said that since Barack Obama became president last year, the couple have "much more respect" for their predecessors because only presidents and their families understand the job's pressures.

The first lady also said she teases her husband about his graying hair. She said his mother and grandfather were gray, "so he was going in that direction anyway."