free antivirus software linuxShould i have a antivirus software for linux?

I am using mint 9 ubuntu (something like that : D ) and want to know if i should have one if yes, what is the best free antivirus ?????!!!!!!
The answer is yes. Every operating system, no matter what it is should have an anti vfree antivirus software linuxirus program. In mint Linux open the software management program and do the search for clamtk. Calm is the Antivirus and the tk part is a GUI screen for clam anti virus.. MAC computers and Linux do have viruses directfree antivirus software linuxed at them, how ever they don't kill it off like what happens with Windows. I tend to give lectures about Virus, worms, trojans and malware and why you are only protected 90% of the time using Windows.
no