Nice OP-Ed piece courtesy of the CIA about the southern cross cable being huge, with 1/4 inch steel rods on the 2nd layer, and virtually impenetrable.
The truth is the cable is 1.5 cm in diameter, and can be cut with high quality shears, and a small boat anchor.
http://en.wikipedia.org/wiki/Southern_Cross_Cable
Biting the hand that feeds IT
