Interesting links of the day

• This cool speedbump captures energy from fatasses slowing down to eat Burger King. We need more ingenuity like this to capture "wasted" energy.
• It seems that man is likely the source of global warming. Weak.
• "No nation can preserve its freedom in the midst of continual warfare," James Madison. I agree with the author that the US has become war-mongering. I'm not sure what happened to our representational democracy.