"This could be deployed at major sporting events, concerts and rail stations as well as for military use."
A similar device has been up for a year at the Phoenix airport:
http://www.azstarnet.com/sn/related/170728OK, it might stop tapers with huge gear bags, but nobody would would be stupid enough to bring a full open rig in a stealth situation anyway.
These days with the abundance of mobile phones, pocket cameras, PDAs, you'd get so many false positives at a concert it would be too time consuming to check.
Anyone carrying an R09, LS-10, H1xx, PMD620, H2 would easily be waved through.
And for smaller venues, the cost of $100,000 for this scanner is prohibitive, so they won't be deployed anyway!