News outlets can use the well documented 'fair use' practice in the use of imagery or other copyrighted materials in the course of reporting a story as news. That doesn't mean every blogger on the internet can use any photo they want without penalty (although in the Disney blogger space many think they can) and just call it news to get away with it. Fair use applies to what most reasonable people would consider to be a legitimate news source like a newspaper, magazine, TV network, local affiliate or similar. Most reputable ones will indeed work to get permission for use (I've had some approach me to use photographs in the past) but some focus a little more on the deadline.They can't, and the license holder (licenses are automatic and assumed on the behalf of the creator) has the right to demand compensation for the use.
here is a good page to describe Fair Use if you're really bored.