Installed home surveillance systems can cost thousands of dollars, they are expensive to maintain and costly to upgrade. Lying around your house right now you've probably got all the ingredients you need to create your own video surveillance system for next to nothing - all you need are a couple of old web cameras, a PC and some new free (as in freedom) Windows software called iSpy.
On Sunday, August 5, 2007 Bush signed the revised Foreign Intelligence Surveillance Act (FISA) into law, in which the U.S. Congress spinelessly caved in and gave legal authority to the Bush administration to continue to intercept and spy on electronic communications. Then, on Thursday, August 16, 2007 the whole worldwide Skype network goes down. Coincidence? I think if you use Skype, you should now be very, very, concerned about the privacy of your calls and had better start considering using FOSS alternatives.