 Why is it unexpectedly hard for the men to forge letters for the children?
So when the Chief of World Security told him that he had been selected as the answer to the Solar System's greatest mystery, Jery assumed that it was because of his mental agility. But when he got to Mars to find out why fifteen boys had vanished from a spaceship in mid-space, he found out that even his quick mind needed time to pierce the maze of out-of-this-world double-dealing. After sixteen years of education, Jack found himself teaching high school English in Chicago, a worthwhile career, but "not what one would call zesty." Security men were not hired for their loquaciousness. But if I spot it in less, they throw it out and start over again.
 They have to intentionally write poorly, which is proving to be difficult with the volume they have to write
 There is a huge amount of letters to write and families to keep up with. It's a lot of information  They have to intentionally write poorly, which is proving to be difficult with the volume they have to write  None of them are particularly good at writing letters, making it difficult for them  It makes them too emotional, because it involves children.