Manila, May 9 -- The fatal crash at Ninoy Aquino International Airport (NAIA) Terminal 1 that killed two people and injured four others on May 4 triggered renewed scrutiny of the airport's bollard system, the protective barriers meant to prevent vehicles from breaching critical areas.

The PHP8-million project, completed in 2019, failed to stop the vehicle that crashed into the departure area, raising questions about the effectiveness and integrity of the installation.

Manila International Airport Authority (MIAA) General Manager Eric Ines, in an interview with the Philippine News Agency, traced the origins of the project to international security audits.

In 2017, the United Kingdom's Department for Transport flagged the absence of "hos...