Comment by rdtsc

Actually no. There is a trade-off there. Compartmentalization implies duplication of work and waste but it protects against one compromised person leaking a whole lot of information.

Imagine that North Koreans promised $2m to the Korean Intel Dept. employee to reveal their secrets. If the secrets and methodology is the same and shared as he Iraq Intel methodology that one person can cripple our the whole intelligence apparatus worldwide.