Space blankets

So they have found water on Mars.  The scientists that drive the rovers around said they would not drive them to look at it even if they were close enough.  They wouldn't want to contaminate the water with Earth microbes.  Really?  It's not like we are sending blankets infected with small pox. Although we probably would if we wanted to colonize. We probably sent pox blankets on the Voyager space craft.  Here aliens! A pictograph, a record,  and smallpox.  Hooray!
We are assholes.