How US-Iran talks unfolded in Islamabad over the weekend - recap

Here's a recap of the historic peace talks between the US and Iran in Pakistan over the weekend. On Friday, there was still uncertainty about whether the US-Iran talks would happen at all. The next day, both sides first met separately with Pakistani representatives. After that, Iranian and US negotiators sat down face-to-face. But after 21 hours of discussions, Washington and Tehran couldn't reach a deal. In the early hours of Sunday in Pakistan, an Iranian foreign ministry spokesman described t