Obama's First 100 Days

And the four timescales on which he must act:

• The three-year time-scale: the economic crisis.
• The fifteen-year time scale: the health cost crisis.
• The seventy-five-year time scale: the global power crisis.
• The 375-year time scale: the global climate crisis.

http://www.j-bradford-delong.net/2009_mov/20090507_100_days.m4a