The best? No, not really.. Science, (not atheism), does what is possible... no matter how the world might view it. We could all fight sticks and stones for all science gives a shit - that is not why wmd are made, that is not why nukes have been made. The only reason nukes have been used is because a religious man has ordered it - but the orders of a religious man are of no consequence to science.
Although it's an impossibility, let's say that science developed a time machine. Some pagan then decided to go back in time and kill Mary before she gave birth to jesus. The scientist is not at fault, the pagan is. What you need to do is sit down and figure this into your equations. Science will do what it is capable of doing - regardless to the possible negative side effects of that discovery. It is not upto those scientists to use what they wrought.