The logistics involved in setting up and executing your radio-controlled triggering scenario are substantial, and are unlikely to be encountered in a combat zone such as Iraq or Afghanistan. While I am not saying it would be impossible to defeat an acoustic detection system such as this one, it's also not as easy as you seem to think it is.
Now that we've thrown 'em off the trail, use the form below to get in touch with the people at Engadget. Please fill in all of the required fields because they're required.
The logistics involved in setting up and executing your radio-controlled triggering scenario are substantial, and are unlikely to be encountered in a combat zone such as Iraq or Afghanistan. While I am not saying it would be impossible to defeat an acoustic detection system such as this one, it's also not as easy as you seem to think it is.