The same with vaccines and all the benefits. The advances in biology can be used to make better vaccines or better bio-weapons. Both choices are politics in the end.
Science can be likened to a hammer. How you use it, has nothing to do with it in itself. So stop treating science like a good hammer!!!
It's like the Religious Right's posters for the National Rifle Association. They assert that many things can be used as weapons (cars, etc). The al Qaeda used airplanes as weapons (911 attack). President W. Bush accused Iraq of using balloon trucks as bioweapons, and using aluminum tubes for refining plutonium (though they were the wrong dimensions).
A terrorist, in modern times, mailed weaponized anthrax to a politician. It was traced by its DNA to a government lab, then the terrorist was identified as a disgruntled scientist. Since the US has treaties with other nations not to have bioweapons, what what is doing with them?
In short, anything can be used as a weapon. The National Rifle Associate (and the Religious Right that supports them) assert that guns don't cause violence, people cause violence.
But, some guns are for hunting (rifles for deer, shotguns for fowl), but no hunter uses a pistol. Pistols are only used for killing humans or wild animals that are attacking, and they are not very effective for big game. Pistols are the most common weapon to rob stores.
So, should certain classes of weapons be banned? If we banned pistols, people could still defend their homes with rifles. But the NRA asserts that any restriction of gun rights is the first step to banning guns.
Many gun advocates demand guns so that they can shoot government officials if they feel that the US is a dictatorship. They advocate armed rebellion against the United States government if they don't agree with the government.
Imagine if we ban certain types of guns, like AK-47 assault rifles (like the one Patrick Purdy used to kill many children on a playground....in full automatic machine gun mode). That means that we could arrest anyone that we see carrying such a weapon.
The NRA argues that only criminals will carry weapons, because they flout the law.
Currently, policemen worry that the flack jackets won't stop armor pierson bullets (steel tipped, with Teflon). The criminals have more intimidating weapons than the police, and many policemen are limited to a certain type of weapon.
Does the 2nd Amendment allow us to have a nuclear bomb in our basement? If not, why not?
If weapons were not so readily available, they wouldn't be as easy to obtain for robberies, and anyone caught with one could be arrested on the spot.
Rifles are difficult to conceal, so you could see someone carrying one into a store for a robbery.
Does it work to arm everyone? If we handed out guns to all airline passengers, then a rogue passenger would not dare use a gun to hijack the plane, or he'd be shot.
Do we hand out guns to kids on playgrounds so that Patrick Purdys won't be able to kill unarmed kids?
Getting back to your point, science can be used as a weapon or tool of peace, health, and prosperity. Individual scientists must evaluate if their employers will use their knowledge for good or evil. If you work for the military, you must be prepared to help the government attack enemies (like Iraq), even if you don't think that they should be attacked (especially since they have been found innocent).
We have a more choice to be part of the problem or be part of the solution, and religion plays a vital role. Sadly, the Religious Right seems to have chosen the wrong side of that debate (siding with guns, war, torture camps, greed).