The story: Rising public outrage over the mysterious poisonings of hundreds of schoolgirls in Iran in past months has led the government to launch an investigation. Believed by some observers to be premeditated attacks, state-aligned media have accused the foreign-based opposition of involvement. Meanwhile, there are also speculations that the alleged culprits are “millenarians.”

The coverage: Reeling from months of anti-establishment protests, the Ebrahim Raisi administration is under pressure to take swift action to pre-empt renewed unrest.

• At a cabinet meeting on Mar. 1, the president tasked Interior Minister Ahmad Vahidi with overseeing a probe into the poisonings.
  
  
• Vahidi told reporters on Mar. 1 that the authorities are still "looking for clues" and rejected reports alleging that arrests had been made.
  
  
• Health Minister Bahram Eynollahi on Feb. 28 said that "a kind of mild poison" had been used. On the same day, Alireza Monadi-Sefidan, the chairman...