USA Today: Mainstream media continue to be wary of Internet bloggers because the reporting and opinions on their Web sites are often not subject to journalistic checks and balances, such as editing and rules on sourcing. But Jon Klein, a former CBS News producer who jumped to an Internet venture before being tapped to run CNN a few months ago, says that there's no sense in ignoring the "blogosphere," which is why he has created a daily, four-minute segment on Inside Politics.








