Well you are certainly entitled to ask for a new feature to export TIFF.
Whether that will have a lot of support is debatable since most use for TIFF format would be to place in a new document, I think, and ID already allows placing of both native pages and PDF, both of which have big advantages for anything with type or vector objects. Why do YOU want to export TIFF?
In the meantime, there is no direct way to get TIFF out of InDesign, so you have to start with some format that can be exported -- JPEG, EPS, SWF, FLA or PDF, all of which would need to be converted in some editor, if not necessarily Photoshop.
Thank you very much for your answers!
TIFF is asked by the newspaper. But I will inquire on submision of other formats.
(Using solely ID is a question of simlifying the procedure, as usualy time becomes the main topic) .
With warmest regards