Calder Walton says both seek to topple the United States from atop world stage, with China's blend of money, influence, all-hands-on-deck approach posing the greater threat.

Calder Walton recounts how Russia and China are using their intelligence agencies to reverse the outcome of the Cold War

Belfer Center experts on security, intelligence, and cybersecurity issues were interviewed on the recent leak of classified military intelligence documents allegedly by Airman Jack Teixeira.

Calder Walton explains why, as the 20th anniversary of the U.S.-led invasion of Iraq passes, it is useful to understand how China's intelligence and national security establishment reacted at the time.

Calder Walton recounts the history of Cold War intelligence and explains the role of intelligence in the context of the Russian invasion of Ukraine.

This essay makes three arguments. First, the US government will need to establish a coronavirus commission, similar to the 9/11 commission, to determine why, since April 2020, the United States has suffered more coronavirus fatalities than any other country in the world. Second, the COVID-19 pandemic represents a watershed for what will be a major national security theme this century: biological threats, both from naturally occurring pathogens and from synthesized biology. Third, intelligence about globalized challenges, such as pandemics, needs to be dramatically reconceptualized, stripping away outmoded levels of secrecy.

Calder Walton  analyzes Brexit's cascading series of repercussions for British intelligence.  He recommends that the UK invest in cyber/digital intelligence as a way out of the strategic intelligence quagmire that Brexit has placed it in.