[Gordis]

Great that you have found time to participate in the discussion, Legate.
First my comments on the minor points from the beginning of your post

Originally Posted by Legate of Amon Lanc

]Of course Sauron was probably clever enough not to trust Saruman completely, but generally speaking, he could have trusted "all right, I believe you have cast aside all your previous allegiances to the Free Peoples, or your personal interests, and are working just for me now." That is the basic way it was, I believe.

I think it was in Sauron's nature not to trust anyone completely, and if he had no choice but to trust somebody, then he trusted the nazgul, just because he virtually had their very souls in his hands (via the Nine Rings he held).

With Saruman he had nothing of this kind of safety precautions. I think Sauron realized that Saruman, given the opportunity, would definitely try to grab the Ring. But then again, Sauron was sure that ANYONE would desire to do the same: the Wise, Elves, Men, Orcs, Trolls - no one could be trusted in this matter. So Sauron couldn't really hold Saruman's lust for the Ring against him. It was simply unavoidable.

Perhaps the Witch-King reasoned this way as well, thus he was not shocked when Saruman said: "And if I knew where this thing was hid, I should not be here, but long gone before you to take it." It was the most damning thing of what he said, but it simply proved his desire for the Ring, which was a given anyway.

Another thing was to learn that Saruman had acted upon his desire, fooling Sauron about the location of the Shire. It was damning, but it also had to be expected.

Originally Posted by Legate of Amon Lanc

]The main thing is: the WK did NOT suspect Saruman after talking to him by the Gate (as you can read), thus, even the fact that Saruman said "if I had it, you would call me Master" etc. had not in any way struck the WK. And this is what I mean to say: Why should it? I don't really see anything suspicous on that. Saruman was merely stating the FACTS. The WK indeed WOULD have bowed to Saruman, had he had the Ring. It was not meant to say: "If I had it, I will make you call me master", I believe it was simply meaning: "If I had it, IT will force you to call me master". Obviously. Saruman was a Maia, and merely having the Ring would make him a tremendous presence.

Actually, Saruman said " for if I had it, then you would bow before me and call me Lord." Lord, not Master, which I think is different. Perhaps it only meant "you would show me more respect than you do now".

But if "Lord" in this sentence indeed equals "Master", it becomes even more interesting. We know from Letter #246, that even with the One Ring, Saruman wouldn't become the Master of the Nazgul, because they were fully subservient to the Nine Rings which Sauron held, not the One. Sauron would always have primary control over the nazgul, while Saruman would only have secondary control.
The question is: did Saruman realize it? Perhaps he didn't. Perhaps he had no idea about Sauron's safety precautions regarding the Nine and deluded into thinking that getting the One would bring the nazgul to his side?

There is another piece of evidence that would confirm this theory. Gandalf said at the Council: " The Nine the Nazgûl keep" (the quote that gives everyone a lot of headache when the Nine Rings are discussed, as it contradicts all the other quotes). Now, most of Gandalf's information on the Ring-lore came from Saruman. Perhaps Gandal's words at the Council reflected Saruman's own mistake?

Then the conversation at the Gates becomes somewhat funny. Saruman tries to impress the nazgul and, due to his magic Voice, almost succeeds. The nazgul depart somewhat dazed. Then half a mile away, the WK asks "Do you recall, Khamul, what did the wizard say? Didn't he mention he wanted to get the Ring and become our Master?"
"I think so, milord"
"He-he, the old white fool can always hope…" General laugh.

Originally Posted by Legate of Amon Lanc

]I won't think the WK would watch out for Saruman that much, after all, as soon as he learned about Saruman's not-full loyalty (from that traveling Southerner, or Gríma, or whichever version we take as the "real" one) and at the same time he learned about where exactly the Shire is (from the same person). Mainly, I can't imagine him sending even one or two Nazgul to bother looking for Saruman, he wanted to get Baggins as soon as possible, and he did not have as many men (or wraiths) to spare.

Then the nazgul knew that Saruman was being watched by Sauron via the Palantir. Also don't forget, immediately after the nazgul left the Gates, Saruman sent out his wolves, to prevent the nazgul from lingering nearby.

Yet, I think the WK's decision to personally guard the Greenway - the approaches to Bree from the direction of Isengard - was partly caused by his knowledge of Saruman's betrayal. Saruman could have come in person after all - or release Gandalf (which is almost what had happened) or even make peace with him. In the latter case, the two Maiar could have come together to fight the nazgul. That would have been hard to counter.

Originally Posted by Legate of Amon Lanc

]Anyway - that was about why did not Saruman do anything AFTER the Riders came. But what about the time since Saruman imprisoned Gandalf till the time when they came?

Saruman was trying, to the very last moment, to "wear the mask of friendship, until he was ready". Had it not been for Gandalf escaping, Elrond would have had no real idea that Saruman is a traitor; the less any of the others, who learned that only on the Council, because of Gandalf.

Still I don't see how coming to the Shire, leaving Gandalf locked up in a stout cell, or even better killed, could reveal Saruman's treachery to the Wise. Radagast told him that the Nazgul were searching for the Shire. Saruman proposed his help to Gandalf and invited him to Orthanc. But the Grey never came - perished on the way most likely - so Saruman really had no other option than to go to the Shire himself. Had he failed to find the Ring, that would be a story to tell to the White Council. And to Sauron he could tell that he was seeking the One to bring it to him. That would be needed in the case of failure. But if he succeeded, he would need to tell no tales to anyone, only give orders. Or so he must have thought.