http://www.dhs.gov/xnews/testimony/testimony_1231508506152.shtm
An educational read, but I wanted to reprint a couple of key parts here:
An educational read, but I wanted to reprint a couple of key parts here:
The terrorists were able to collect sufficient information on all targets to execute a successful attack. Much of the information they required was accessible through open sources
Open source reporting also indicates they monitored press coverage of the attack through wireless communication devices—which may have been taken from hostages—that may have provided some tactical advantages against the Indian rescue forces.