Should newspaper reporters be required to reveal their sources?

http://www.salon.com/news/politics/war_room/2010/06/25/climategate_retraction
http://www.robgalbraith.com/bins/content_page.asp?cid=7-10057-11064
http://www.usatoday.com/news/health/2010-02-02-autism-vaccine_N.htm


Today's media only focuses on their ratings. They just want to report the news they are told to report, not caring to find out wether what they are reporting is true or false. The media plays a very important role in today's society what they report becomes the topic we debate about that whole day. The newspaper however is mostly directed to adults, ones who like to stay up to date with current events. They get thier daily dose of news from the newspaper but that same news gets repeated to them a couple of times through out the day. Tv, Radio and the Web. Im surprised that they are still around, with the many sources that exist today a newspaper seems perimitive. We can never really know what we read or what we hear is true, with all the sources available today we should always check more than one for our self to find out the truth, and even then it's still only as true as you are hearing or reading. Conclusion they should be required but who is going to be the unbiased judge.