"These drone pilots can sit in Nevada and watch a potential target 8,000 miles (12,000km) away for months on end, building up what they call 'patterns of life' - building what's been called a 'remote intimacy' with their prey - all in the knowledge that, one day, they may kill them.
"A conventional fighter pilot will fire missiles and then head back to base. But drone pilots are required to circle for some hours afterwards, to assess the damage. The picture they're looking at is extraordinarily clear - and the damage is often in the form of body parts.
* The English adjective "invincible" is from Latin in- + vincere to conquer.
(ii) The English surname Ray is "of Norman origin * * * from Old French rey, roy king."