[CentOS] x86_64 package mess ?

Thu Feb 18 15:36:31 UTC 2010
Mathieu Baudier <mbaudier at argeo.org>

> The 32-bit packages are installed for backward-compatibility with any
> 32-bit programs you may want to run.

Regarding security, is it less safe to have these *.i386 packages
installed? (esp. on a server)
(according to the principle that "less is always more secure")