Acknowledgments
Prologue : A farewell to arms
ch. 1. How we got here
ch. 2. Where we are
ch. 3. How it works
ch. 4. What it's like
ch. 5. Why we can't go back
ch. 6. Why we hate
ch. 7. How we have changed
ch. 8. How we make it better
Epilogue : The future of war
Notes
Index.