In a speech in Tehran on Thursday, the Supreme Leader denounced the US over its approach to nuclear talks and its human rights record.

Ayatollah Khamenei’s criticism comes as high-level negotiators from Iran and the 5+1 Powers — possibly including lead US negotiator Wendy Sherman — meet in Geneva, seeking agreement on the implementation of November’s interim nuclear deal.

So is the Supreme Leader merely applying a bit of pressure on the Americans? Is he playing tough to a domestic audience while his Government pursues the deal?

Or is Khamenei — as he did in October 2009 — suddenly renouncing the discussions?

The Supreme Leader’s office summarizes the speech on Twitter: