As computer systems control more and more of our technology, cyber terroism would be one of the most effective way to attack our way of life. Terrorist could hack into the NY stock exchange, send the market out of control, and damage our ecomemy. But I believe our worst nightmare would be if a terrorist cell obtained the ablilty to hack into any countries military weapons system. just think of what would happen if Terrorist were able to hack into ICBM missle system.