The BBC's Chief International Correspondent Lyse Doucet reports from Iran as 'uncertainty' continues.
One haulier says filling a truck now costs about £300 more than at the start of the year.
The US has started a naval blockade of maritime traffic entering and leaving Iranian ports.
Jersey's air show faces concern over fuel price turbulence
The BBC speaks to farmers in parts of the South about concerns over rising fuel and fertiliser costs.
"Slopaganda" is too weak a term to capture how powerful this "highly sophisticated" content is, one expert says.
As the US vice-president leads peace talks with Iran, he must balance warring factions, a demanding boss and his own political future.
Face-to-face talks would mark the highest-level engagement between Iran and the US since the 1979 Islamic Revolution.
Both sides have reason to end the war but share no common ground.
