This afternoon, the Federal Transit Administration — the federal agency that grants transportation agencies money and oversees how that money is spent — confirmed it is now actively looking into San Diego’s North County Transit District (NCTD).

An audit of the North County Transit District identified 19 deficiencies. In this ongoing series, inewsource details the most noteworthy.

A scathing audit of NCTD's Contracts Department finds deficiencies throughout 19 areas. An LA transportation board chair weighs in on the report.

For the second time in less than a month, NCTD has sent inewsource and KPBS a letter demanding retractions. We have responded.

Twenty-one of the agency's top 25 positions have turned over since 2009 when Executive Director Matthew Tucker arrived. Some of the positions revolved as many as five times in three years.

In its ongoing investigation of the North County Transit District, inewsource has found that decisions made at the top have had serious consequences on the ground.

North County Transit District's Capital Improvement budgets show funding for the SPRINTER was set aside in 2012 -- and cut this year.

Executives from Universal Protection Service watched last week as San Diego's transit agencies reacted to a recent KPBS & inewsource investigation.

An audit, prompted by an inewsource and KPBS investigation, raises questions about transit security.

Security guards who patrol San Diego’s train stations and trolleys say their concerns about safety are being ignored by their employer.

The brake problems were known to some employees as far back as 2009 -- just one year after the SPRINTER began service.

A security guard present at Friday night's shooting tells a different story than the one detailed in a Metropolitan Transit System memo to its board.

North County Transit District's SPRINTER rail line, which runs between Escondido and Oceanside carrying 7,800 passengers a day, will be taken off the tracks to replace worn brake rotors.

The board of the Metropolitan Transit System gathered Thursday morning for more than three hours to discuss their monthly agenda items, including concerns over KPBS/inewsource's recent investigation into San Diego’s transit security.

Private transit cops in San Diego say they’re unequipped to protect the public because the company and agencies in charge are doing the job on the cheap.

The men who engineered the Bob Filner and Carl DeMaio campaigns shared their strategies and regrets with our Investigations Desk.

Whether the city's next mayor is Councilman Carl DeMaio or Congressman Bob Filner, he will wield extraordinary power to shape the future infrastructure deals of San Diego — a city with approximately $3.5 billion slated for capital projects over the next five years.

While he’s been running for mayor this year, Congressman Bob Filner has missed voting on well more than half the votes in the House, more than any other California congressional member.

Take a deep dive into San Diego's Tenth Avenue Marine Terminal and find out what developers and the San Diego Unified Port Commission are fighting over.

Investigative Newsource will track a shipment of a car from start to finish — from the manufacturing plant in Germany to the customer’s door in Las Vegas.