Iran has warned students staging anti-government protests, saying they must “understand the red lines” despite their “understandable” anger. PARIS: Iran offered a muted warning on Tuesday (Feb 24) for students who staged anti-government rallies, with the country's leaders under pressure after a recent mass protest movement and threats of US military action over its nuclear programme. University students kicked off a new semester over the weekend with gatherings in which they revived slogans