Too thin? Kate Middleton’s weight a topic of discussion

How thin is too thin? Not even Kate Middleton has escaped the thorny debate.The willowy princess-to-be's appearance and reported comments during a visit to Northern Ireland sparked some concerns Wednesday about whether she's losing too much weight ahead of the April 29 royal wedding. The subject even became a topic on Twitter.In front-page newspaper photographs, Middleton appears to be in good hea