Anywhere Killer (n.): hypothetical weapons system using an arbitrarily-targetable wormhole generator to deliver ordnance – or convenient non-ordnance, such as stellar cores – to any target location in the galaxy whose coordinates are known or can be inferred, bypassing all defense systems in the intervening space-time.

Naturally, as a strategic first-strike weapon nonpareil, the development, deployment, and/or use of this technology has been banned by every respectable galactic polity.

Naturally, every respectable galactic polity has a research team or twelve squirreled away in secret working on it.

May their theoretical and practical difficulties long continue.

– A Star Traveler’s Dictionary

(Yes, this is the local version of Schlock Mercenary’s “Long Gun” – since people kept asking me about such a thing in the ‘verse.

And to clarify further: those research teams may not know it yet, but those theoretical difficulties are actually, genuinely insurmountable. The only way to inflate a distant wormhole end at a targeted location is the ER=EPR method used by stargates, and so Anywhere Killers are impossible.)