The meeting at the White House came as some tech bosses and experts have called for tighter rules around AI.
Batteries based on sodium-ion technology could be made in the US with locally sourced materials.
The firm also issued an update on incidents in which its models accessed Australian government systems.
The move is part of a plan to improve rail infrastructure, cut train delays and improve experiences for passengers.
Andy Burnham said that he would make tough decisions to fund a new national care service.
Yemen's Houthis have seized territory near the Bab al-Mandab Strait - a key trade gateway for oil and global shipping.
The debt has more than doubled in a decade to reach a milestone $40tn (£29.4tn), Treasury figures show.
With the war in the Middle East hurting Dubai, Italy has become an attractive location for wealthy individuals from France and elsewhere.
In France, traditional restaurants are disappearing – the French blame high costs and the "Americanisation" of eating habits.
