"Why aren't the existing Linux virii anything more than a
topic for columns such as this one? Why don't they affect you in
your daily computing in the way that MS virii affect Windows
users?"
"There are several reasons for the non-issue of the Linux virus.
Most of those reasons a Linux user would already be familiar with,
but there is one, all important, reason that a student of evolution
or zoology would also appreciate."
"... let's take a look at the way Linux has stacked the deck
against the virus."