Through the clear plexiplast viewing dome of Earth Satellite V2-ZF, the bright orb of Earth could be seen, full and lustrous green against the sharp blackness of space. But Dave Conroy wasn't able to feel much pleasure in the view. As he waited, hands linked with duralloy chains, he knew only that somehow he had landed in trouble—trouble that would probably cost him his life, here among the beauties of the orbital satellite. "Go on in, next batch," a bored voice ordered. Dave began to move, alon