The ICAO has moved to ban bulk shipments in the belly of passenger aircraft two years ago, but while the Obama administration wanted immediate action from Congress to join the global community on this, Trump rescinded the move, put it on executive hold, allowing US aircraft carriage of these batteries in commercial bulk shipments on passenger aircraft.
So Trump, in previous utterances, claims to have improved aviation safety since the start of his presidency; a happy coincidence by all accounts, and then flies in the face of general worldwide policy and possibly endangers pax on US a/c. Where have we heard that attitude before?? I wonder if the citizens of USA realise their safety is being compromised by their on chief. And then again; why would he do this? Is there some lobby that has said there is a huge cost increase if Lion batteries can not be bulk shipped by pax a/c? Changes in these kind of policies are often due to money. Or is this being too simplistic?