And you don't just mix it in your bathtub. You have to do the mixing just right. And then there is the part about requiring a lot of real high-explosives placed in the right way to get it to detonate. And then there is the part that you have to get within about 100ft of the white house to do real dama - and not a few miles - which could be in Virginia or Maryland or Anacostia.
But these are just details and I don't want to rain on their parade.
Hey...they just need to get MacGyver...can't he blow up a building with a candy bar or something?