DMCA

Interesting, but I'd have thought the plain GPL did that just fine - the installer binary is clearly a derived work of nmap since it includes the whole thing, and can't reasonably be considered 'mere aggregation [...] on a volume of a storage or distribution medium', so the GPL would prohibit redistribution of the whole unless the other components were available under the GPL as well, which seems to be exactly what Fyodor suggests is the intended behaviour of the licence.