As Iran ponders whether to accept curbs on its nuclear program, it worries less about the possibility of foreign military attack than about the relentless onslaught of economic sanctions that are squeezing its oil-based economy.
U.S. and European officials have said that only tangible progress in the talks due to resume in Baghdad May 23 could convince them not to fully implement measures this summer that will bar Iran from selling oil to Europe and make it harder for Iran to receive payment from remaining customers.
