The previous commenter got confused somehow.
There were two devices. The one in Paris healed people but the one in Russia killed people. The men that injured and killed and then stayed so were at the Russian site. I wonder why they didn't bring up this difference when considering which of the devices they should attack, but I suppose that is asking for too much from a movie like this.
Now if the poster wanted to talk about the bad things in the movie he could have brought up the dialog or perhaps the poorly thought out bad guys, or some of the other quick fixes the movie took. The bad guys didn't seem to have much reason for their decisions other than a fear of something different. They also seemed to miss a major plot point after all of their study.
So while the movie isn't that good it did at least stay consistent. I wonder if we will be seeing a third movie in a few years to help further explain/muddy the water.