 How do Svan and his five fellow insurgents find out that the people of Earth no longer think of

Venusians as human?
DOUBLECROSS by JAMES Mac CREIGH Revolt was brewing on Venus, led by the descendant of the first Earthmen to land. [Transcriber's Note: This etext was produced from Planet Stories Winter 1944. There was no reason why everything shouldn't have been functioning perfectly, of course, but he was pleased to have it confirmed, all the same. The Executive Officer was moodily smoking a cigarette in the open lock, staring out over the dank Venusian terrain at the native town. "Everything shipshape, I take it!" "Every man accounted for except the delegation, cargo stowed, drivers ready to lift as soon as they come back." But after all, they're human beings, just like us—" "Not any more. Four or five generations ago they were. "Acclimation," Lowry said scientifically. "They had to acclimate themselves to Venus's climate. He stared at the wooden shacks that were the outskirts of the native city, dimly visible through the ever-present Venusian mist. The native guard of honor, posted a hundred yards from the Earth-ship, stood stolidly at attention with their old-fashioned proton-rifles slung over their backs. A few natives were gazing wonderingly at the great ship, but made no move to pass the line of guards. "Of course," Lowry said suddenly, "there's a minority who are afraid of us. They think there will be hordes of immigrants from Earth, now that we know Venus is habitable. And there's some sort of a paltry underground group that is spreading the word that the immigrants will drive the native Venusians—the descendants of the first expedition, that is—right down into the mud. After all, the fittest survive. That's a basic law of—" The annunciator over the open lock clanged vigorously, and a metallic voice rasped: "Officer of the Deck! Instruments reports a spy ray focused on the main lock!" "From their own mouths you have heard it. Our parents came from Earth. She looked around at the others, found them reluctant and uneasy, but visibly convinced by Svan. "Then we must act. The Council has told us that we alone will decide our course of action. We have agreed that, if the Earth-ship returns, it means disaster for Venus. Therefore, it must not return." But they will never get back to Earth." "The Council did not know what we would face. The Councilmen could not come to the city and see what strength the Earth-ship has."
 They use a spy ray, which allows hem to listen in on a conversation happening on an official
 They are informed by fellow Venusian rebels, who themselves heard from the council.  They already know. Racism and prejudice runs rampant in all Venusian and Earth towns.  They intercept a galactic transmission, which explains it all.  They use a spy ray, which allows hem to listen in on a conversation happening on an official