Rustam Arifdzhanov, journalist who claimed to have seen the FSB exercise plan. Reviewed

Investigation into the three FSB agents identified in the 'exercise' documents.

Discrepancy regarding the purchase of a 12-gauge cartridge for the 'exercise'.

Account of the intercepted phone call to Moscow by FSB agents in Ryazan.

General Sergeyev, Head of the Ryazan FSB at the time of the bombings. Reviewed

Complete transcript of source ID 325 is required for detailed cross-referencing.

2002 Investigative Trip Dismissed

Key witness Alexei Kartofelnikov Reviewed

Discrepancy in exercise plan details

Initial tests showed hexogen