The reason our authorities don't take pre-emptive action against Islamic terror -- even after solid intelligence warnings.

Why does the Obama administration keep failing to thwart Muslim terrorist attacks in the U.S. after receiving apparently good intelligence warning of those attacks?

It turns out that Americans keep turning in budding Muslim terrorists to the Obama administration and the administration keeps on doing nothing. For example, the alleged mastermind of the weekend pressure-cooker bombing in New York City was turned in by his own father but the Federal Bureau of Investigation failed to do much of anything about him.

These intelligence failures have become a recurrent theme in the Obama era, with deadly results. Excluding the events of the last few days, there have been 89 Muslim terrorist plots and attacks in the United States since Sept. 11, 2001 and 25 of those have taken place since the beginning of 2015, according to David Inserra of the Heritage Foundation.

Counterterrorism expert Sebastian Gorka, vice president at the Institute of World Politics, blamed political correctness for the FBI’s inability to do something about Rahami before he acted.

“There are certain sensitivities,” Gorka said on the “O’Reilly Factor” last night.

“A certain political matrix is being forced upon our operators and investigators,” he said. Usually this kind of political pressure originates not from the FBI, but from the Civil Rights Division of the Department of Justice, he said.

The FBI is also hindered by inadequate human resources, Gorka said. There are reportedly 900 active terrorist investigations in all 50 states and the bureau can only do so much, he said.

The FBI has indeed been handcuffed in terrorist investigations by President Obama whose administration has worked with terrorist front groups like the Council for American-Islamic Relations (CAIR). The law enforcement agency has also become increasingly politicized in the Obama era.

The pressure-cooker terrorist was apprehended after he injured a score of New Yorkers on the weekend but not through brilliant police work. He was caught during a shootout with cops.

Ahmad Khan Rahami, a.k.a. Ahmad Rahimi, was charged yesterday with use of weapons of mass destruction and bombing a place of public use. Rahami was born in Afghanistan but became a U.S. citizen.

Prosecutors say Rahami planted a pipe bomb and triggering cellphone Saturday morning in Seaside Park, N.J., before a scheduled U.S. Marine Corps charity run. Later that day he placed a pressure cooker bomb in the Chelsea neighborhood in Manhattan that the complaint states caused injuries and “multiple-million dollars of property damage across a 650-foot crime scene.” Twenty-nine people were wounded. He was previously charged with multiple counts of attempted murder of police officers and other offenses arising from a gun battle when he was captured Monday.

Police also discovered and safely detonated a pipe bomb at a train station in Elizabeth, N.J. Although it is unclear if Rahami is connected to that bomb, his family did sue the city of Elizabeth in 2011 claiming harassment and religious discrimination related to their family restaurant, First American Fried Chicken.

Rahami came to the attention of the FBI two years ago when his father suspected his son was involved in terrorism. Mohammad Rahami told reporters he contacted federal authorities after Ahmad stabbed Nasser, another one of his sons, and attacked another family member, which led to a criminal investigation.

The FBI apparently performed a superficial examination of the case at the time.

“In August 2014, the F.B.I. initiated an assessment of Ahmad Rahami based upon comments made by his father after a domestic dispute that were subsequently reported to authority,” the agency said in a press release. “The F.B.I. conducted internal database reviews, interagency checks, and multiple interviews, none of which revealed ties to terrorism.”

It would seem the fact that Rahami made a three-month trip to Quetta, Pakistan, in 2011, and visited Quetta again during an 11-month trip beginning in 2013, were ignored by the FBI. Quetta is a Taliban stronghold and a hotbed of Salafi jihadism.

About two miles from the Chelsea attack, President Obama gave a speech at the United Nations in which he said the U.S. should take more immigrants like Rahami and implicitly attacked GOP candidate Donald Trump. Obama blamed America for the world’s problems as he jabbed at Trump’s promise to secure the border, crack down on illegal aliens, and change our asylum policies.

“The world is too small for us to simply be able to build a wall,” Obama said. “We have to open our hearts and do more to help refugees who are desperate for a home,” he said. He added, “today a nation ringed by walls would only imprison itself.”

Obama also suggested that Americans and Europeans are racist for not wanting to be swamped by outsiders from hostile cultures. “And in Europe and the United States, you see people wrestle with concerns about immigration and changing demographics, and suggesting that somehow people who look different are corrupting the character of our countries,” he said.

Meanwhile, Rahami isn’t the first Islamic terrorist law enforcement agencies have failed to do anything about after receiving tips.

Omar Mir Siddique Mateen, who in June killed 49 innocent victims at a gay nightclub in Orlando, Fla., was reported to the FBI in 2014. The massacre has been called the worst mass shooting in American history and the worst domestic terrorist attack since 9⁄ 11 . Mateen, shot dead by police during the episode, had been under FBI investigation.

Islamic State claimed responsibility for the attack after it took place. Mateen himself “claimed allegiance to the Islamic State and praised the Boston Marathon bombers,” before being killed by police on the scene, the New York Times reported at the time.

In December 2015, President Obama ignored FBI-procured evidence that the terrorist attack in San Bernardino, Calif., was an Islamic terrorist operation and ordered federal officials to mislead the public about the true nature of the assault.

Although the FBI knew immediately that the mass-casualty event was a Muslim terrorist attack, Obama and FBI Director James Comey reportedly clashed over why Syed Rizwan Farook and Tashfeen Malik, opened fire Farook’s municipal government workmates, leaving 14 dead. They left a trail of social media evidence that went unused before the attack.

Whistleblower Phil Haney, an investigator who helped to create the Department of Homeland Security, revealed the government shut down a database he created that might have helped to prevent the attack. Haney says he looked into groups that had ties to Farook and Malik as far back as 2012. But civil rights officials accused him of unfairly profiling Muslims, removed his security clearance, and destroyed the data he collected. (Haney tells his story in Trevor Loudon’s powerful new documentary film about leftist and jihadist influence in the U.S. government, The Enemies Within.)

And don’t forget the 2013 Boston Marathon bombers, Tamerlan and Dzhokar Tsarnaev. The FBI had been investigating Tamerlan and Russia’s Federal Security Service (FSB) warned the Obama administration about his jihadist sympathies.

But Barack Obama doesn’t like reality intruding on his preferred narrative. Islam is a religion of peace, and Muslims have to be given the benefit of the doubt in his view.