Senator Bradbury and the DX1 Seizure — V. Bertolaccini

An action adventure thriller of an ultimate 21st century global terrorist war with global terrorists with a mass of atomic weapons!
The execution of a colossal atomic bomb on a Pacific military base, the assassination of a top senator, and the hijacking of a new space shuttle reveals someone has acquired a new form of atomic weapons and is executing a sinister plot on civilization.
A woman on a paradise South Pacific island, believed to be desolate with nobody for hundreds of miles, is confronted with dangers and her worse fears when men in speedboats race ashore nearby and launch into battle, with the most powerful military weapons, on a full scale assault on something hidden behind a sea cliff.
What's hidden away on the tiny uninhabited island? What could drive them to such limits, with such force?