Sandy was particularly destructive because it was prevented from moving back out to sea by a "blocking pattern" associated with the jet stream. There's debate about this, but one recent study suggested that melting sea ice in the Arctic may lead to such blocking.

Laws matter, but typically changing the law by itself accomplishes little.

It's easy to keep issuing blame to Republicans or the president

Let me be clear: I'm a believer in a robust military, which is essential for backing up diplomacy. But the implication is that we need a balanced tool chest of diplomatic and military tools alike. Instead, we have a billionaire military and a pauper diplomacy. The U.S. military now has more people in its marching bands than the State Department has in its foreign service - and that's preposterous.

Sometimes I wish eastern Congo could suffer an earthquake or a tsunami, so that it might finally get the attention it needs. The barbaric civil war being waged here is the most lethal conflict since World War II and has claimed at least 30 times as many lives as the Haiti earthquake.

There are ten times as many sex slaves transported around the globe today as agrarian slaves were transported in the 1790s.

Guilt-tripping people does not work; they tend to be turned off.