Does home insurance cover plumbing leaks?

With all the home security options out there, I’ve been seriously thinking about installing a security system at my house. I’ve heard that they can pay for themselves. But is this true—does having a security system lower home insurance?

I’ve spent the last couple of years repairing an old race car. While I’ve done all the maintenance and tuning myself, the car’s steering has been feeling loose. I’m not sure what needs to be done. How can you fix a loose feeling race car?

I live in Pennsylvania and drive a Toyota. About a week ago, my front passenger seat belt stopped retracting. I’d like to repair it myself instead of taking it to a mechanic, but I don’t know how. What’s the best way to fix a stuck seat belt retractor in my Toyota Camry?