[Tropo-Bob (Bob)]

In the same breath as saying we should visit Mars, it is said that there is water on Mars and we can exploit the water, thus making the provisioning of the trip easier.

It is also speculated that there could be simple life on Mars, because it has water. And what.... people are expected to drink that water!!!!

That sounds like a big risk to me. IMO, we need to know a lot more before we go visiting Mars.