We're all surprised you ever had one, Perfect Angel. I hope you were dressed appropriately when you got it. LOL
They weren't posing for official Easter Sunday portraits they were caught by photographers dashing to the car on a drizzly, windy day that had suddenly turned quite chilly. Few people look their best under those circumstances.
While their choice of clothes may not be what most adults would have selected the twins' choices were in keeping with popular fashion for young coeds in their social circles. Mixing denim with softer fabrics and feminine dresses is very trendy as are high, backless shoes. It seems clear to anyone with an ounce of common sense that Jenna had, in fact, "demurely" covered her shoulders with a wrap of some sort. However, a gust of wind "accidentially" and "inappropriately" reveled the flash of skin that has so unhinged a few folks.
Lastly, I'm sure that President and Mrs Bush were filled with joy at the sight of their lovely young daughters visiting with the wounded at Ft Hood. Moreover, I'd be willing to bet that none of the young soldiers they spoke with spent one minute critiquing their wardrobe. What really matters is what they did, not what they wore.