On this day 75 years ago, the United States dropped a nuclear bomb on Hiroshima. Since the end of the Cold War, the threat of a nuclear attack has seemed far fetched. However, the rise of cyber hacks and artificial intelligence could disrupt the precarious balance between nations in the modern nuclear arms race.

• Plus, what's at stake for Joe Biden as he narrows his choice for vice president to two candidates.
• And, the latest coronavirus numbers from around the country.
• Also, an introduction to Ceasar the No Drama Llama.

Guests: Axios' Bryan Walsh, Mike Allen and Sam Baker.

Credits: "Axios Today" is produced in partnership with Pushkin Industries. The team includes Niala Boodhoo, Sara Kehaulani Goo, Carol Alderman, Cara Shillenn, Nuria Marquez Martinez, Naomi Shavin and Alex Sugiura. Music is composed by Evan Viola. You can reach us at podcasts@axios.com.

Go Deeper:

• How new tech raises the risk of nuclear war
• Coronavirus hotspots begin to improve