Originally Posted by
scudpilot
I thought the definition of Terrorism involved causing disruption to infrastructure and financial issues.
This pretty much fits the bill IMHO.
There's no single, universally accepted definition of terrorism, but this is from a 2005 publication (Root Causes of Terrorism):
"terrorism is a set of methods of combat rather than an identifiable ideology or movement, and involves premeditated use of violence against (primarily) non-combatants in order to achieve a psychological effect of fear on others than the immediate targets.”
Hence, terrorism seeks to cause fear through violence or the threat of violence. These drones at LGW seem to have done exactly that, even if the whole story is yet to emerge.