How to prevent tabs from being expanded into spaces?

Yang Zhang <[email protected]>
Newsgroups gmane.comp.gnu.screen.user
Message-ID <[email protected]> 
I'm using Ubuntu 10.04's screen (4.00.03jw4 (FAU) 2-May-06).

When I just start gnome-terminal, "echo -e 'hello\tworld' actually
produces a tab that I can copy and paste.

But once inside screen, the same command expands into spaces.

Any hints as to how to prevent the expansion? Thanks in advance.
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