Question: Though most famously run by former Vice President Dick Cheney, Halliburton Energy Services was run by Thomas H. Cruikshank during the 80s and early 90s.  What was their primary area of operation?
Sentence (from "Larry Klayman"): In the last case, federal judge Richard J. Leon ruled in December 2013 that the NSA's bulk collection of telephony metadata violated the Fourth Amendment.
Relevant evidence: No