This sets off a whole debate over what the appropriateAmerican response ought to be, and...

This sets off a whole debate over what the appropriate
American response ought to be, and one of the big
options that's brought up is, "Let's build
a hydrogen bomb." So this is a weapon that uses
not just nuclear fission, not just the splitting of
atoms, like the atomic bomb, but uses the energy
of an atomic bomb to set off nuclear
fusion reactions like those that take
place in the sun