Although cases have declined significantly in Europe, the United States, and much of East Asia, the pandemic remains a major threat in South America, India, and several other nations around the world.
Following high profile pauses to the AstraZeneca and Johnson & Johnson vaccines, as well as surging cases in different parts of the world, it is clear that the gains in some countries do not signal an end to the pandemic.
With high-profile suspensions of the AstraZeneca and Johnson and Johnson vaccine, fear of potential side effects and uneven efficacy of vaccine rollouts are causing concern for some.
Outbreaks continue to emerge even as vaccinations increase; some countries feel safe to engage in more normal activities while others introduce new restrictions.
Ivo Daalder, Chuck Hagel, Malcolm Rifkind, and Kevin Rudd join Brian Hanson to explain why the current security environment could restart nuclear proliferation.