But it&#x27;s still made of COTS parts and assembled by an individual, as opposed to dedicated hardware being used by a weapons manufacturer.<p>I&#x27;m probably on the lists already, so I&#x27;ll just point out that turning an IED into an RFID-scanning &quot;smart IED&quot; seems to require only a somewhat competent electrical engineering undergrad, a laptop, and less than $10 worth in parts. The reason they aren&#x27;t widely used is probably because there are better methods than playing with RFIDs.