To avoid this week's worm

It's just the latest version of an old worm called "MyDoom," and it's the reason why Google and other search engines slowed down or didn't work this week. The Washington Post tells how to avoid infection and - if your child does open the attachment that launches it - provides links to free fix-it tools offered by several computer security companies. Here's the BBC with more on what this worm's like and what it does. Also, see our "What if our PC's a zombie?!" if you think your family computer's infected.