u.s. system? how does this work? >> it is perfectly legal. it's called inversion. our writer alan sloan who wrote the article calls it desertion. he calls these companies deserters. it's been legal, but we are seeing more companies do it. nothing changes physically. you might still see the headquarters on whatever parkway in whatever city or state they are based in the u.s. or were, but it's about the financials. what we find is so questionable or wrong about this is these companies are drawing from so many benefits that you get when you are an american company. benefit from our deep financial system and markets. our rule of law and democracy. benefitting from our physical or intellectual infrastructure. a lot of these companies are drawing technologies from our research institutions or testing them on the military or having the military as their first