http://www.laboratoryequipment.com/news/...20&type=cta

"The water, which apparently seeps down salty crater slopes as announced by the space agency on Monday, could be susceptible to contamination by Earth microbes, officials said. The Curiosity rover already trekking around the planet’s surface is not properly sterilized to avoid causing problems, they said."

Does that seem like a lack of forethought?

There never was nothing.