The requires telephone companies to turn over customer information, including numbers called, without a court order if the federal bureau of investigation (fbi) claims that the records are relevant to a terrorism investigation.

a. cable act of 1992
b. electronic communications privacy act of 1986
c. gramm-leach-bliley act of 1999
d. usa patriot act of 2001

d. USA Patriotic Act of 2001

Explanation:

The full title of the USA Patriotic Act 2001 is Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism (USA PATRIOT) Act of 2001. This Act gives unprecedented power to FBI to track and examine telephone call records without taking any court order. The telephone companies are obliged to provide access to all call details.

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