The Challenges Facing Yahoo's New CEO Marissa Mayer

Marissa Mayer's challenge will also be wooing advertisers that have shifted marketing budgets away from Yahoo
Sanctions a Major Sticking Point in Iran Nuclear Deal
43:45 - The effort to end a 12-year standoff with Iran enters its final day with negotiators still divided over some "tricky issues." Bloomberg's Elliott Gotkine reports on "Countdown." (Source: Bloomberg)
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