judgecorp writes: "Southampton Council in the UK has been ordered to stop snooping on every taxi cab in the city. Privacy watchdog, the Information Commissioner's Office has said it is "disproportionate" to demand that every Southampton taxi has CCTV that constantly monitors driver and passengers, including recording all conversations."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals