Trump prepares to let go of arms control with Russia

The expiration of the New START treaty between the U.S. and Russia could ignite a global nuclear arms race. The treaty, which had limitations on nuclear arsenals and limited how many deployed nuclear-capable missiles, bombers and warheads both the U.S. and Russia could have, expires this week. Despite Russia's overtures for a new agreement, the U.S. has not responded formally.

Russia is expanding its nuclear forces, and the U.S. may need to reassess its strategy. President Trump has downplayed risks, saying, "If it expires, it expires... We’ll just do a better agreement."