Via many blog posts today http://www.spreadnetworks.com/about-us/vision-and-background
- is a low latency fibre link between NYSE and CBOT exchanges (new york and chicago). So arbitrage trading just got a new car!
PDF doco here - http://www.zerohedge.com/sites/default/files/The%20Ultimate%20Trading%20Weapon.pdf
For $60 an hour you can hire a backhoe or excavator to put them out of business.
If this should ever become an intolerable burden, I suggest sabotage would enter the headlines.
Dial before you dig would take on a whole new meaning wouldn't it?
"Ummm, hi there. It's Jim. I'm just ringing to let you we have just detuned your latency for a little while. You might want to try copper for the next 2 weeks."