Via AFP:
Secretary of State John Kerry on Tuesday openly admitted that a hard-won nuclear deal with Iran may still fail in the coming months, as he faced a fierce grilling from US lawmakers seeking to impose new sanctions.
The top US diplomat helped hammer out the accord with Tehran under which it will freeze parts of its suspect nuclear program in return for some sanctions relief as global powers seek a final agreement to dismantle its atomic weapons capability over the next six months.
But he acknowledged to US lawmakers: "I came away from our preliminary negotiations with serious questions a...
