Greg Grandin

The CIA's always-useful World Fact book says that a staggering 6.3 million Colombians have been internally displaced (IDP) since 1985, with 'about 300,000 new IDPs each year since 2000,' the year Bill Clinton enacted Plan Colombia. Added up, that's 2.4 million people during Clinton's eight-year presidency.

Even before the expansion of slave labor in the South and into the West, slavery was already an important source of northern profit, as was the already exploding slave trade in the Caribbean and South America. Banks capitalized the slave trade, and insurance companies underwrote it.

The question of causality is complex. For some philosophers and physicists, time might not exist. And since cause-and-effect reasoning needs the concept of time - of one thing preceding another - the effort to establish causality is a mug's game, an infinite regression of increasingly unanswerable questions.

Having a Congress with a more diverse educational and professional background would serve the country well. And given the budget challenges facing America today, we might benefit from a few more cold, calculating problem solvers, and fewer courtroom impresarios.