The Haystack review " brainy GCHQ surveillance thriller
Hampstead theatre, LondonAl Blyth's debut play explores how far into the lives of citizens a state can pry, and the effects on the snoopers themselves After the movie Official Secrets, about the Observer's engagement with a GCHQ whistleblower, comes Al Blyth's debut play The Haystack, in which a fictional Guardian reporter and home affairs editor deal with a leak raising multiple ethical issues. In Official Secrets, …