Why are Iranians protesting and what does it mean for the regime?

Anti-government protests in Iran erupted for a thirteenth consecutive day on Friday, in a wave of nationwide unrest that marks the biggest challenge to the regime in years.

Authorities cut off internet access and telephone lines on Thursday – the biggest night of nationwide demonstrations so far – leaving Iran largely cut off from the outside world. Rights groups said dozens of people have been killed since the protests began.

US President Donald Trump has threatened to attack Iran if security forces respond with force. Supreme Leader Ayatollah Ali Khamenei has urged Trump to “focus on his own country” and blamed the US for inciting the protests.

As public anger continues to…