Obama says still unclear whether Iran nuclear deal possible

WASHINGTON (Reuters) - U.S. President Barack Obama said on Wednesday that it is still unclear whether the West can successfully conclude a deal with Iran over its nuclear program, saying the prognosis for an agreement should become clear in the next three to four weeks. "There's a long tradition of mistrust between the two countries," Obama said, referring to the relationship between the United States and Iran. (Reporting by Roberta Rampton; Editing by Jim Loney)