How will 2009 go down in history?

The last few months have been marked by big developments on many fronts: a slowly recovering economy, a troop surge in Afghanistan, the passage of health care reform bills through both houses of Congress, and an international conference on climate change that fell short of many expectations. We talk with best-selling historians Philipp Blom and Jay Winik about what future generations will remember when they look back on the end of the century’s first decade.