I also support including the Wired Threat Level "blog". The external links policy is, as with most Wikipedia policies, a guideline, and in this case it is clear the word "blog" is having too much read in to it: Threat Level is written by recognized Wired journalists, to the same standard as the rest of Wired Magazine, and is in a blog format because it is most appropriate for coverage of an event that is on-going, not because it is informal or an opinion piece. This is very definitely one of those cases where the blog should be linked to, the article is poorer for not including the link.