An interrupt when a "hostile" TG enters a player's fire-control range. This should NOT apply to NPR fire-control range....
I've got a beam-armed picket on a JP into enemy territory. An enemy survey ship is approaching the JP. I've got him on actives, but it'll be 10 hours before he arrives and I can shoot him. Meanwhile, a big battle is going on in another system. I'm pretty sure that what's going to happen is that I'm going to forget the survey ship is there, and he'll zip through the JP without me remembering to shoot at him because I'll get neither an event nor an interrupt when he's within beam range.
I'm pretty sure that NPR, on the other hand, already have this logic built in, so we don't need more NPR-on-NPR interrupts.
[EDIT] - Yep, I missed him. He just transitted.
John
PS - I don't want to target and open fire on the scout now since then I'll be spammed with "No attempt to fire" messages.