Iran says it's enriching uranium to 60% - What's going on with the Iran nuclear talks?

London — Iranian and U.S. negotiators resumed talks in Vienna on Thursday that could eventually resurrect the nuclear deal struck back in 2015. But that's a big could.

This week, Iran ramped up its uranium enrichment program in yet another breach of the agreement, which, with the U.S. having quit and Iran breaking multiple rules, is now barely alive.   President Joe Biden's administration wants to reverse his predecessor's unilateral withdrawal from the nuclear deal, but the process was always going to be delicate. Sunday's attack on Iran's nuclear facility in Natanz complicated things even further.