In 1995, the similar phrase "Trust and Verify" was used as the motto of the On-Site Inspection Agency (now subsumed into the
Defense Threat Reduction Agency). In 2000, David T. Lindgren's book about how interpretation, or
imagery analysis, of aerial and
satellite images of the Soviet Union played a key role in
superpowers and in
arms control during the
Cold War was titled
Trust But Verify: Imagery Analysis in the Cold War. In 2001, the
National Infrastructure Protection Center (NIPC), a national critical infrastructure threat investigation and response entity, published a paper entitled "Trust but verify" on how to protect oneself and their company from email viruses. In 2015, both Democrats and Republicans invoked the phrase when arguing for and against the proposed
Iran nuclear deal framework. In the study of
programming languages, the phrase has been used to describe the implementation of
downcasting: the compiler trusts that the downcast term will be of the desired type, but this assumption is verified at runtime in order to avoid undefined behavior. The phrase has been used in relation to India–China border disputes and also following the Galwan clash during the
2020 China–India skirmishes. Variants of the phrase were also reported in the Indian media, "distrust until fully and comprehensively verified", and "verify and still not trust". On July 24, 2020, US Secretary of State
Michael Pompeo referenced the proverb in a speech at the
Richard Nixon Presidential Library saying that in dealing with China, the
United States must instead "distrust and verify". == Origins ==