Father, son charged with defying machine ban

A Taiwanese businessman and his son are charged in Chicago with trying to bypass a US ban on the export of machinery that could have been used for weapons production in North Korea.
The US Attorney's Office yesterday announced the arrests of 67-year-old Hsien Tai Tsai and his son, 36-year-old Yueh-Hsun Tsai.
The machinery includes ones that drill precise holes in metal.
Prosecutors say the US placed a 2009 ban on the father from doing any business in the US as suspicions around him grew. But the complaint says he continued trying to export machines from the US with his son's help.

Prosecutors say the father was arrested last Wednesday in Estonia. The son was arrested the same day at his home in Glenview, Illinois.