NEW YORK (WCBS 880) – The detailed schematics of One World Trade Center, the building Police Commissioner Ray Kelly calls the nation’s number one terror target, can be downloaded right off of New York City’s official website.

WCBS 880’s Marla Diamond: The Port Authority Says The Documents Were Scrubbed

READ MORE: Attorney Says Current Whereabouts Of Brian Laundrie, Gabby Petito's Fiancé, Are Unknown

There are 17 documents stamped confidential showing every nook and cranny – including load-bearing walls, mechanical rooms, and ground floor entrances – of the still under construction tower in Lower Manhattan.

That concerns counterterrorism expert Makie Haberfeld of John Jay College of Criminal Justice.

“This absolutely gives the potential terrorist the blueprint of how to enter, how to defend themselves if there is a counterattack against them,” she says. “I think it’s in a way irresponsible on the part of the organizations that decided to that.”

She says the documents provide a basis for a Mumbai-style attack.

READ MORE: Nearly 200 People Being Released From Rikers After Gov. Hochul Signs 'Less Is More Act,' Calls N.Y.'s Incarceration Rate 'A Point Of Shame'

Security expert Bob Strang says less information is more secure, but you also need to attract tenants.

“They’ve gotta be able to see floor plans, and you’ve got to balance it and I think that’s what they did here,” Strang told WCBS 880 reporter Marla Diamond. “I don’t think that there’s anything here that’s gonna surprise anybody.”

He adds that One World Trade Center will be the most secure building in the world.

SEE: More Photos Of 9/11 Memorial And One World Trade Center

MORE NEWS: After Almost 2 Years, New York Philharmonic Returns For 180th Season

The Port Authority says the documents were scrubbed of sensitive information and should not have been marked confidential.