Big brother is listening : phonetappers & the security state /
Campbell, Duncan.
Big brother is listening : phonetappers & the security state / Duncan Campbell :reports from the New Statesman, first published between February 1979 and July 1980 :updated in January 1981. - London : New Statesman, 1981. - 70p. - NS report ; 2 . - NS report ; 2 .
0900962089
Wire-tapping--Great Britain.
Big brother is listening : phonetappers & the security state / Duncan Campbell :reports from the New Statesman, first published between February 1979 and July 1980 :updated in January 1981. - London : New Statesman, 1981. - 70p. - NS report ; 2 . - NS report ; 2 .
0900962089
Wire-tapping--Great Britain.