Rohini J. Haar – The Conversation

A Border Patrol tactical unit agent dispenses pepper spray at a protester attempting to block an immigration officer’s vehicle. Alex Kormann/The Minnesota Star Tribune via Getty Images

February 4, 2026

‘Less lethal’ crowd‑control weapons still cause harm – 2 physicians explain what they are and their health effects

Michele Heisler, University of Michigan and Rohini J. Haar, University of California, Berkeley

Federal immigration agents tend to receive less training on how to properly deploy crowd-control weapons, research finds.

A destroyed military vehicle is seen in Sudan near the beginning of the current fighting in April 2023. AP Photo/Marwan Ali

October 31, 2024

Sudan’s civil war has left at least 62,000 dead by our estimate − but the true figure could be far higher

Sarah Elizabeth Scales, University of Nebraska Medical Center; Blake Erhardt-Ohren, University of California, Berkeley; Debarati Guha Sapir, Université catholique de Louvain (UCLouvain); Khidir Dalouk, Oregon Health & Science University, and Rohini J. Haar, University of California, Berkeley

The work of estimating conflict mortality is difficult. But that doesn’t make this grim exercise, nor accounting for the broader effects of conflict, any less critical.

Contact Rohini for