article_snippet: (CNN)Iran's Supreme Leader Ayatollah Khamenei on Thursday accused the six world powers involved in negotiations over Iran's nuclear program of "deception, trickery and backstabbing" in their dealings with Tehran, according to Iranian state media.
article_snippet: Of course, I'm concerned because the other side is into deception, trickery and backstabbing,Ayatollah Khamenei Ayatollah Khamenei is quoted as saying in a speech in Tehran.
article_snippet: This is part of their ploys and tricks," said Ayatollah Khamenei.
highlights_snippet: Iran's leader accuses world powers of "deception, trickery and backstabbing" in nuclear talks .
  