Andrew Hebbeler — Senior Director and Lead Scientist, Global Biological Policy & Programs at NTI | bio (Nuclear Threat Initiative - Biological Program)

The source confirms the person (Andrew Hebbeler), organization (Nuclear Threat Initiative), and role (senior director and lead scientist for global biological policy and programs). However, the source indicates he is 'Former Staff' but does not explicitly state an end date of 2023. The 'Former Staff' designation confirms he is no longer in the position, but the specific end date of 2023 cannot be verified from this source text. The record is partially confirmed—the core facts about identity, organization, and role are accurate, but the endDate field is unverifiable from the provided source.