You think the government does not have secret access to a surveillance system, developed in their own country, more widespread and ingrained into daily life than anything before?
Of course the alternative theory that it's there for control and manipulation is more likely.
Either that or the NSA just isn't doing anything to stop these shootings. We may never know.
Parallel construction is a law enforcement process of building a parallel—or separate—evidentiary basis for a criminal investigation in order to conceal how an investigation actually began. In the US, a particular form is evidence laundering, where one police officer obtains evidence via means that are in violation of the Fourth Amendment's protection against unreasonable searches and seizures, and then passes it on to another officer, who builds on it and gets it accepted by the court under the good-faith exception as applied to the second officer. This practice gained support after the Supreme Court's 2009 Herring v. United States decision.
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In August 2013, a report by Reuters revealed that the Special Operations Division (SOD) of the U.S. Drug Enforcement Administration advises DEA agents to practice parallel construction when creating criminal cases against Americans that are based on NSA warrantless surveillance.