The story: Iran’s Supreme Leader Ayatollah Ali Khamenei has warned that “encouraging talented Iranians to emigrate is an act of treason and enmity.” The sharp remarks have sparked debate on social media, with users discussing the reasons for why millions of Iranians have left their ancestral homeland in past decades. 

The coverage: In a speech given to the top academic candidates of the country, Khamenei alleged that there are “foreign agents in some of the universities who seek to encourage students to leave the country,” describing it as “a clear act of treason"...