Tarpley told Press TV on June 18, 2013 that revelations about the National Security Agency by their former computer system administrator Edward Snowden outlining global and domestic spying by US intelligence agencies might be seen as a "CIA limited hangout operation," that is, to publicize minor public manipulation operations to conceal greater covert misdeeds such as promoting war in the Middle East. He claimed such "gullibility" operations could be traced from Daniel Ellsberg to Julian Assange 's WikiLeaks , with a legacy in perfidious politics and governance since the 17th century. 
The word 'efficiently' here means up to polynomial-time reductions . This thesis was originally called Computational Complexity-Theoretic Church–Turing Thesis by Ethan Bernstein and Umesh Vazirani (1997). The Complexity-Theoretic Church–Turing Thesis, then, posits that all 'reasonable' models of computation yield the same class of problems that can be computed in polynomial time. Assuming the conjecture that probabilistic polynomial time ( BPP ) equals deterministic polynomial time ( P ), the word 'probabilistic' is optional in the Complexity-Theoretic Church–Turing Thesis. A similar thesis, called the Invariance Thesis , was introduced by Cees F. Slot and Peter van Emde Boas. It states: "Reasonable" machines can simulate each other within a polynomially bounded overhead in time and a constant-factor overhead in space .  The thesis originally appeared in a paper at STOC '84, which was the first paper to show that polynomial-time overhead and constant-space overhead could be simultaneously achieved for a simulation of a Random Access Machine on a Turing machine.