https://www.berkshirehathaway.com/letters/2019ltr.pdf
https://chemsec.org/policy-and-positions/hazard-risk/?utm_source=ChemSec+newsletter&utm_campaign=7a51b01ea8-Hazard_risk&utm_medium=email&utm_term=0_03a9107408-7a51b01ea8-392849241
https://www.city-journal.org/ending-crony-capitalism?utm_source=newsletter&utm_medium=email&utm_campaign=16%2C08%2C21+(Copy)