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.

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.

While I am grateful for the friendships and relationships that I have with my Republican colleagues, it would be naive to pretend that those friendships will change the way that major policies are enacted in Arizona.

Like Hillary Clinton in the United States, Kuczynski is a prototypical member of the trans-American governing class, with deep roots in both the private and public sector and its revolving-door relationship between Washington think tanks, the State Department, and high-level Latin American ministries.