What is the central idea of this paragraph? Read the excerpt from The Code Book.
Despite the enormous strength of RSA and other
modern ciphers, cryptanalysts are still able to play a
valuable role in intelligence gathering. Their success is
demonstrated by the fact that cryptanalysts are in
greater demand than ever before the NSA is still the
world's largest employer of mathematicians.
O Many math experts work for the National Security
Agency.
The RSA computer system makes our country more
secure.
O Skilled people are still important national security
workers.
Computers are better than people at keeping the
nation safe.