President-elect Trump tweeted this morning that the US must greatly strengthen and expand its nuclear capability.
That closely followed Russian President Putin's similar comments about his country's nuclear weapons needs. President Obama's also considering a defense bill that would emphasize space-based nuclear defense systems.
Are we on the verge of a new nuclear arms race?
David Willman, investigative reporter, Los Angeles Times; Willman wrote: Congress scrapped this one word from the law, shaking up nuclear defense policy and opening the door to a space arms race
Nick Timiraos, national economics correspondent for The Wall Street Journal