work in fact, with other people, bad people, trying to keep either drug planes or other planes away or whatever. if you get the planes close enough together, they'll show up as one spot on the radar. and if you get a secondary radar, it squawks sq 368. a 68 doesn't even see 370 because what the transponder off, there is no proximity alert to this plane. it doesn't work that way if this is turned off, that plane doesn't know it. to come from behind and to the back, you may never see that plane is there. is it possible? for right now, yes. it is still possible until we get more pings from inmarsat, the pings, knowing how far away from this spot right there. that's inmarsat satellite, 22,000 miles in space, but at 64.5 degrees east. way above the equator. so we know how far that is.