AntiSec, Group of Hackers claimed to hack 70 US websites of law enforcement

In a report of CNN says that Group of Hackers "AntiSec " said that they hacked 70 US law enforcement sites online. It is time when hackers are attacking many websites like FBI and Pentagon also so its mean the privacy of the common users of internet is not so safe because when so big websites are not safe then how it can be possible that common users be safe. Recently hackers hacked many websites around the world like IMF and UK but this action is not stopping yet now.