First round of direct US-Iran talks since deal expected to continue through the night

The development

The US president, who is not at the talks, had earlier exchanged warnings with Iran's negotiator over clashes between Israel and Hezbollah in Lebanon

Why this counts

What makes this worth tracking, according to BBC, is the chain of decisions it may trigger.

What precedes this

The background, as BBC reports, involves shifts that have been visible for some time in round, direct, iran, talks, deal.

Where this fits in Signal Ledger

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The lens

Signal Ledger reads this through the lens of round, direct, iran, talks, deal: The US president, who is not at the talks, had earlier exchanged warnings with Iran's negotiator over clashes between Israel and Hezbollah in Lebanon.