Jeremy Bash, former chief of staff to Secretary of Defense Panetta, explains why destroying an Iranian nuclear facility takes more planning than simply dropping a bomb on it, and why regime change in Iran could cause more problems than it fixes. For more context and news coverage of the most important stories of our day click here: https://www.msnbc.com/ » Subscribe to MSNBC: https://www.youtube.com/msnbc » Subscribe to MSNBC on TikTok https://www.tiktok.com/@msnbc » Subscribe to MSNBC on