Iran's deputy foreign minister said on Saturday that Tehran is prepared to accept certain limitations on its nuclear program in exchange for the lifting of economic sanctions, but ending uranium enrichment entirely is nonnegotiable."Iran can be flexible on the capacities and limits of enrichment, but cannot agree to stop enrichment under any circumstance because it's essential, and we need to rely on ourselves, not on empty promises," Majid Takht-e Ravanchi told Kyodo News in an interview."It's simple and clear: if the U.S. insists on zero enrichment, then we have no deal."The remarks come …READ FULL ARTICLE