With a deadline for Iranian nuclear deal fast approaching, US Secretary of State John Kerry embarked Wednesday on a frenzy of high-stakes diplomacy in a last-minute push to secure an agreement -- or at least prevent the process from collapsing.
As senior negotiators huddled for a second day in Vienna, Kerry held separate meetings in London. He planned a trip to Paris on Wednesday. Kerry was still weighing when he might join the larger effort in the Austrian capital where negotiators are racing against the clock to forge a pact over the next five days to prevent Iran from reaching the capability to produce atomic weapons.
Despite his efforts, though, signs increasingly pointed to Monday's deadline passing without a deal and the negotiations being extended a second time.