Pluralism and tolerance

Peace be upon our great Rabbi Shlita.
Do you think there is only one clear truth?
If so, is only one stream in Judaism right, and are all the others right? Or perhaps they have not reached the absolute truth and are right in some things and wrong in others? More pointedly, when can I respect other streams in a pluralistic way and when will I give them only a tolerant place like in relation to other religions? And maybe there is a little truth in other religions too, so maybe they too should be given a pluralistic attitude???
And if we are dealing with matters of view, is pluralism possible in Halacha, as Rabbi Zakor does not believe?!
P.S. If you liked it, I would be happy if the rabbi would give me a link to his column on the differences between tolerance and pluralism.