Berkson’s Paradox Explained

What is Berkson’s paradox? Assume that there are two independent events, A and B.  These events are not correlated when observed in nature.  However, what if one conditions on the fact that either A or B occurs.  By conditioning on the fact that one of the two events occurred, these events are now correlated. If…

Homegrown Terror

On 60 Minutes this week, I saw a piece called “Uncovering the Roots of Homegrown Terrorism” which documents the rise in the number of American citizens who are receiving training in Pakistan for Terrorists operations.  Many of these ‘homegrown terrorists’ are ethnically Pakistani, though certainly not all.  The story also documents a similar problem with…