According to recent reports by Essilor and the World Health Organization (WHO), uncorrected blurry vision affects 2.7 billion people globally, resulting in $270 billion in lost productivity annually…

Watch Lawrence H. Summers, Harvard University's Charles W. Eliot university professor, reflect on his career in government and academia as part of CFR's HBO History Makers Series.

Watch experts remark on what is at stake at the G-20 London summit and outline possible policy options for member countries.

LS: I didn't share many of the policy preferences of that administration, I found the experience to be one that was very interesting. I think from that point forward I hoped I would have a chance to …

MERIT JANOW: I think we're ready to begin. My name is Merit Janow, and it's my pleasure to preside at this morning's discussion. A few administrative matters: Please turn off your cell phones and B…