TODAY: Former Russian spy critically ill after possible poisoning; Putin says 400 foreign spies thwarted last year; Trump rebukes Putin for weapons brags; Russia and US continue to trade accusations of election meddling; Russia prepared for Internet cut-off; Germany intervenes in Gazprom-Naftogaz row; EU bid to regulate Nord Stream fails; Kirill Serebrennikov gives statement regarding his charges; watchdog censors photo of anti-Putin graffiti.