Free speech has been used by the Supreme Court to give immense power to the wealthiest members of our society.

Sea level rise and destruction of water resources as glaciers melt alone may have horrendous human consequences.

The American Revolution was a small part of a major world war going on between France and England, so the French intervened and that was a big factor, but the domestic contribution was basically guerrilla warfare.

One contribution scientists can and should make is to be clear and explicit about the limits of scientific understanding, a matter that is particularly important in societies where people are trained to defer to alleged experts.

By most accounts, Aristide is the most popular figure in Haiti.

Suppose that, say, China established military bases in Colombia to carry out chemical warfare in Kentucky and North Carolina to destroy this lethal crop [tobacco] that is killing huge numbers of Chinese.

Technology is basically neutral. It's kind of like a hammer. The hammer doesn't care whether you use it to build a house, or whether a torturer uses it to crush somebody's skull.