You might catch some naive idiots that way but never the well organised big fish.
During the 2008 terrorist attacks on Mumbai, Indian government tapped into the mobile conversations of terrorists. These tapped conversations helped in further investigations:
http://en.wikipedia.org/wiki/2008_Mumbai_attacks#cite_note-D...
Clearly, these were "well organized big fish" and not "naive idiots".
the still having the death penalty in 2012 one
Whats wrong with death penalty? It is perfectly reasonable response to some kind of crimes. [An example: the terrorist, who was caught live in action, who killed plenty of innocent people. That guy surely deserved a death sentence]
During the 2008 terrorist attacks on Mumbai, Indian government tapped into the mobile conversations of terrorists. These tapped conversations helped in further investigations: http://en.wikipedia.org/wiki/2008_Mumbai_attacks#cite_note-D... Clearly, these were "well organized big fish" and not "naive idiots".
the still having the death penalty in 2012 one
Whats wrong with death penalty? It is perfectly reasonable response to some kind of crimes. [An example: the terrorist, who was caught live in action, who killed plenty of innocent people. That guy surely deserved a death sentence]