WASHINGTON — Director of National Intelligence Tulsi Gabbard is investigating more than 120 biological laboratories abroad that were funded by US taxpayer dollars for decades, as part of an effort to end potentially risky experiments with viruses pursuant to President Trump’s executive order on so-called “gain-of-function” research. Gabbard told The Post Monday in a statement that her team is going “to identify where these labs are, what pathogens they contain and what ‘research’ is being