Iranian and US officials are zinging each other over Twitter Staff
Posted: Mar 10, 2015 10:24 AM

International diplomacy in the 21st century apparently includes Twitter snark.

Sen. Tom Cotton (R-Arkansas) wrote a controversial letter to Iranian leaders on Monday casted doubt on the current US nuclear negotiations with Iran. To make sure Iran saw his message, Cotton tweeted a translation directly at Iran's foreign minister, Javad Zarif: