Jareh Sebastian Dalke disabled the location tracking system on his car then drove north from his home in Colorado Springs to Denver's Union Station. He made sure to leave without his phone.

The 31-year-old former US National Security Agency (NSA) employee parked several blocks away, walking to the train station with a laptop, a memory card, a gun and a note with handwritten instructions for his clandestine mission.

Dalke had spent several months communicating via email and transmitting top secret, classified information to someone he believed was a Russian foreign agent.

A US sailor who served in Japan was found guilty on Friday at a general court martial for attempted espionage, failure to obey a lawful order and attempted violation of a lawful general order.

The sailor, Chief Petty Officer Bryce S. Pedicini, will be sentenced on May 7, according to a statement from the Naval Criminal Investigative Service.

A spokesperson for the Pentagon has confirmed that a senior official from the United States had reported symptoms corresponding to so-called Havana Syndrome after attending last year’s NATO summit in Vilnius, Lithuania.

Sabrina Singh made the announcement to reporters on Monday, a day after a group of news outlets pointed to links between the mysterious ailment and alleged Russian operatives.

“I can confirm that a senior DOD [Department of Defense] official experienced symptoms similar to those reported in anomalous health incidents,” Singh said.

The Kremlin on Monday dismissed a report that Russian military intelligence may be behind the mysterious "Havana syndrome" ailment that has afflicted U.S. diplomats and spies globally.

Insider, a Russia-focused investigative media group based in Riga, Latvia reported that members of a Russian military intelligence (GRU) unit known as 29155 had been placed at the scene of reported health incidents involving U.S. personnel.

A special Russian intelligence unit could be behind a series of attacks that have left dozens of U.S. officials serving overseas with mysterious illnesses.

Russian intelligence unit 29155, a highly secretive military unit under the direct control of Russian President Vladimir Putin, has potential links to the mysterious cases of "Havana Syndrome" that have stricken more than 100 Americans since 2016, according to a report from CBS’ "60 Minutes."

Julian Assange won't be heading to the United States — at least not immediately.

In a partial victory for the WikiLeaks founder, London's High Court on Tuesday delayed his extradition to the U.S., where he faces espionage charges for one of the biggest national security leaks in American history.

Assange's lawyers had asked the court to grant him one last appeal against his extradition.

WikiLeaks founder Julian Assange on Tuesday was granted permission by a U.K. court to appeal his extradition to the U.S., where he is wanted on spying charges.

Assange will therefore not be extradited immediately, the court said.

The ruling from the Royal Courts of Justice in London means Assange will have the opportunity to pursue a new hearing, unless the U.S. provides “satisfactory assurances” on certain aspects that would address his grounds of appeal.

The British High Court on Tuesday ruled that the U.S. cannot extradite Wikileaks founder Julian Assange on espionage charges unless American officials assure that he will not face the death penalty for his alleged crimes and will receive First Amendment protections.

"If assurances are not given then we will grant leave to appeal without a further hearing," Judge Victoria Sharp said. "If assurances are given then we will give the parties an opportunity to make further submissions before we make a final decision on the application for leave to appeal."

The Biden administration launched an investigation Thursday into internet-connected “smart cars” from China to determine if they can be used to spy on American drivers.

The probe could result in new regulations aimed at limiting the use of certain technologies in connected cars that track drivers and their personal information, such as driver assistance technology.