The U.S. Defense Department has stepped up efforts since the Sept. 11, 2001, attacks to gather intelligence within U.S. borders, aimed at both protecting military facilities and keeping an eye out for any threat on American soil, The Wall Street Journal reported Thursday. <snip>
Several parts of the Defense Department are building large databases of information from sources such as local police, military personnel and the Internet, and in doing so, the military is edging toward a sensitive area that has been off-limits to it since the 1970s: domestic surveillance and law enforcement, according to the report.
One widely reported part of the new information battle is the National Security Agency's wiretapping of calls without a warrant between people in the United States and suspected terrorists overseas. The NSA is part of the Defense Department.
The military justified the gathering of domestic intelligence in part by relying on a key distinction between "receiving" information and "collecting" it. Military regulations over the past few decades have generally barred using soldiers to gather information on American citizens, but military officials have interpreted the rules to mean that receiving information from the police or federal agents is acceptable, the report said. <snip>
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