v. 1. Borders and points of entry
v. 2. Public spaces and social institutions
v. 3. Critical infrastructure.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Homeland security : protecting America's targets. ISBN 9780275987718. Published by Praeger Security International in 2006. Publication and catalogue information, links to buy online and reader comments.
