Americans’ fascination and frustration levels with mysterious drone sightings continue to grow although the number of reports involving unidentified objects has dipped in the past few days.

Federal agencies like the FBI have not provided definitive answers about where the drones are coming from. The agencies continue to maintain that the drones are not the property of the U.S. military and that there is no reason for concern about the objects being operated by foreign governments.

Last week, the Federal Aviation Administration temporarily banned drones in certain parts of New York and New Jersey, where Democratic Gov. Phil Murphy maintains that anti-drone technology that was sent to the state isn’t working.

“I think momentum and frustration is growing on this issue,” Brad Crispin, the co-founder of Americans for Safe Aerospace, told NewsNation.

Crispin said out of the thousands of reported drone sightings, some have been misidentified. But he said that the main story surrounding the issue is the vulnerabilities that now exist in American airspace and the nation’s critical infrastructure.

He said that a percentage of what people are seeing in the sky is “truly concerning.”

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