As Metro Manila is put in lockdown, we inspect the northern borders.
In North Luzon Expressway, vehicles can freely go to Marilao, Bulacan, as the exit does not have a checkpoint.
Vehicles can also freely go back to the city without showing documents through the Balintawak exit.
Ralf Rivas reports: https://www.rappler.com/nation/254567-watch-not-enough-checkpoints-north-luzon-expressway-lockdown
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