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The Air Force considers cyberspace a "domain" for which the service should train and equip forces to defend, as it does airspace. There are about 3 million attempted penetrations of Defense Department networks every day, according to the Air Force. A senior military commander told the AP, however, that the mission to defend U.S. military networks is better vested in U.S. Strategic Command, which has the military responsibility for cyberspace across all services and commands. Russia's use of computer tools to blind Georgia may not be the first time it has flexed its cyber powers for geopolitical purposes. In the spring of 2007, Estonian government, financial and media Web sites were incapacitated by a massive denial of service attack for which many in that country blamed Russia. The attack, involving a million computers in 75 countries, coincided with controversy over Estonia's plans to relocate a Soviet-era war memorial. According to an August "for official use only" intelligence report by the Homeland Security Department, obtained by The Associated Press, there are no effective means to prevent a similar attack on U.S. Web sites connected to the Internet.
[Associated
Press;
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