In article , R F L Henley wrote:
According to BBC Online:-

President George W Bush will announce proposals next week to send Americans
to Mars

but . . .

unless and until we have robotically established conclusively that there is
or is not life on Mars, we can't put humans on the planet because they will
inevitably bio-contaminate it.
Anyone agree?
Does it really matter that much if we bio-contaminate it ? Bringing life to mars
isn't a bad idea imho.