Powers wield sanction threat after Iran stalemate

GENEVA (Reuters) - Major powers gave Iran two weeks to answer calls to rein in its nuclear programme on Saturday or face tougher sanctions after talks ended in stalemate despite unprecedented U.S. participation.

Zimbabwe opposition may sign initial talks agreement

HARARE (Reuters) - Zimbabwe's main opposition party could sign an agreement as early as Monday to begin substantive talks with President Robert Mugabe's party on ending a political impasse that has worsened the country's already severe economic crisis, opposition officials said on Saturday.