https://www.fema.gov/media-library-data/20130726-1456-20490-7363/fema429_ch2.pdf
https://www.ncci.com/Articles/Pages/II_MARSH2019-terrorism-risk-insurance-report.pdf
https://www.ey.com/Publication/vwLUAssets/ey-benefits-of-the-u-s-program-for-terrorism-insurance-from-a-comparative-perspective/%24File/ey-benefits-of-the-u-s-program-for-terrorism-insurance-from-a-comparative-perspective.pdf