Head of Nobel Peace Prize-Winning Group: Trump's Nuclear Policy "Puts Us on Path Toward Nuclear War"

A treaty intended to limit the United States and Russia's long-range nuclear arsenals officially takes effect today. But the once-promising treaty, signed eight years ago by President Obama, is overshadowed by a new nuclear arms race sparked by President Trump. On Friday, the Trump administration unveiled its new nuclear weapons strategy, which involves spending at least $1.2 trillion to upgrade the United States' nuclear arsenal, including developing some completely new nuclear weapons. Prominent anti-nuclear advocates have denounced the Pentagon's plan as "radical" and "extreme." For more, we speak with Beatrice Fihn, executive director of the Nobel Peace Prize-winning International Campaign to Abolish Nuclear Weapons.