US President Joe Biden has said there are sufficient supplies of petroleum worldwide so other countries can reduce what they buy from Iran. Biden's remarks are potentially construed as an impediment to the progress of the forthcoming round of negotiations on the removal of anti-Tehran sanctions at the Austrian capital of Vienna. Biden Calls on Countries to Cut Iran Oil Imports Ahead of Vienna Talks https://t.co/6fhlTyLOU7 — ThunderbolT  (@pirzadatauqir) ...