I've been holding off on posting about the Algerian raid to free the hostages in the Sahara because reports have been so confusing and conflicted. It does seem that there are a large number of dead hostages, most apparently Algerian workers; it's also known that the hostages represented perhaps a dozen or so foreign nationalities.
Though the hostage-takers claimed to be retaliating for French intervention in Mali, kidnapping for ransom has a long history in Algeria, and while there's little question that this incident is a symptom of the worsening security situation in the Sahara generally. Algeria is reportedly saying the perpetrators entered the country from Libya. I'll say more if we learn more.
Two French-language sites are live-updating: Le Monde here, and Le Point here, and seem to be faster than the English-language sites, if you read French. More to come.