Complex sentence: The Edward Lee Howard operation produced intelligence of interest in the Aldrich Ames double-agent case and the book includes candid statements from Russian operatives, during the period when Russia's security services were transitioning to the FSK and FSB.
Split into simpler sentences: The Edward Lee Howard operation produced intelligence of interest in the Aldrich Ames double-agent case. The book includes candid statements from Russian operatives, during the period when Russia's security services were transitioning to the FSK and FSB.