The New York Times is reporting more than two dozen people have been killed by carbon monoxide poisoning nationwide since 2006, after their keyless ignition cars were inadvertently left running in garages. More than half of the new cars sold in the United States now power on and off with a button rather than a key. But this technology can deceive drivers into thinking that the car is off, when actually it is still running. Consumer advocates have called on car manufacturers to implement new safety features to prevent drivers from leaving keyless ignition cars running for hours by mistake, which can lead to the fatal carbon monoxide poisoning.