Q. Microsoft's Bing.com gives people instant access to hardcore porn. I know my children will stumble across this. What should I do?
—Karen in Washington, UT, listening via podcast through Kim's Club

A. Bing is a new search engine from Microsoft. It's trying to move beyond simply providing a list of related links. And it uses some innovative tools to do that. Unfortunately, one has backfired big time.

All search engines let you search specifically for videos. But Bing provides in-result video previews. Roll your mouse over a result and the video starts playing. You get about a minute preview, complete with audio.

It's actually a neat idea. You can preview videos without leaving Bing. But the site doesn't distinguish between a funny YouTube clip and pornography. The right search turns Bing into a porn theater.

This can circumvent parental controls. And it leaves no trace. The porn site won't be logged in the browser history. You may have no idea what your fifth grader is watching.

Bing has built-in obstacles for porn. Unfortunately, any knowledgeable fifth grader—like yours!—can evade them.