] Criminals are turning the tables on police by making
] crude versions of road spikes and hurling them in the
] path of pursuit cars.
]
] And, according to the letter of the law, there is little
] police can do about it.

This isn't a US news story but I thought it was interesting all the same.

DIY spikes: police face a new kind of stick-up - www.smh.com.au