This has actually been going on for quite some time.
Recently, China maneuvered their own satellites next to each other in what the US viewed as a practice run (or "war games") of taking out other nation's satellites.
I have not finished reading the book yet, but Richard Clarkes latest book Cyber War has an appropriately named subtitle:
The Next Threat To National Security And What To Do About It
It was published earlier this year and the first paragraph on the inside flap just about covers the very things you point out:
"Richard A. Clarke warned America once before about the havoc terrorism would wreak on our national security - and he was right. Now he warns us of another threat, silent but equally dangerous. Cyber War is a powerful book about technology, government, and military strategy; about criminals, spies, soldiers, and hackers. This is the first book about the war of the future - cyber war - and a convincing argument that we may already be in peril of losing it."









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