Fallout from, and investigation of, Friday's horror in Paris dominate the day's news.
ISIS praised the attackers' piety and so forth, but the communiqués it posted to the Internet (for the most part to its Al-Hayat media center) were thin on the sort of detail normally associated with claims of responsibility for an operation — noms de guerre, interviews, pre-attack glamor shots, etc.
ISIS sympathizers don't stint on praising the murderers in social media. Al-Hayat, the source of most ISIS commentary on the attacks, moved to a new dark web site over the weekend, but this seems more an attempt to avoid being shut down than it is an attempt to escape law enforcement attention.
The attacks are seen as mixing a high degree of coordination (more associated with Al Qaeda than its rivals in ISIS) with ISIS's characteristic decentralized inspiration — thus, regional coordination and control, international inspiration. This leads some to conclude that ISIS's followers may be running ahead of their nominal masters, and that the nominal masters may not be entirely pleased with this foreseeable development.
Belgian authorities think the attackers may have coordinated their activities using Playstation 4. Anti-ISIS hacktivists allege that the terrorists funded their operations with Bitcoins.
French police sweep up more than two hundred suspects, leading to speculation about why they weren't successful in preventing the attacks. But such speculation as always underestimates the difficulty of extracting signal from noise. Governments worldwide ramp up intelligence collection against ISIS. Anonymous promises to "hunt down" ISIS adherents.