While King did not provide CNN copies of the responses -- which he said are marked "law enforcement sensitive" -- he highlighted several details Tuesday night.

CNN: STORY HIGHLIGHTS

Data from license plate readers is considered law enforcement sensitive and can only be shared with law enforcement personnel and special investigative units of the NICB on an official need-to-know basis.

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The seminar was designed for only law enforcement professionals, and sensitive information dealing with the tactical approaches used by first responders to the Sandy Hook shootings was discussed, state police spokesman Lt.

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Telecommunications carriers and Internet firms do not just hand over sensitive customer information to law enforcement officers.

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Governments are snapping up advanced monitoring and tracking systems to boost domestic law enforcement and counter the threat of terrorism even as businesses use the technology to manage and protect sensitive data.

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Also, the company has a partnership with the National Law Enforcement Telecommunications System (NLETS), which allows local, state, federal and international public safety agencies to exchange sensitive information.

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