References:

• Salvador, BTC, country, tender, legal, countries - https://www.washingtonpost.com/business/energy/el-salvadors-bitcoin-bombshell--what-does-it-mean/2021/06/09/11d9eedc-c983-11eb-8708-64991f2acf28_story.html
• Volcano, Bitcoin - https://www.rt.com/news/526147-salvador-bitcoin-currency-volcano/
• Warren - https://www.reuters.com/technology/warren-us-government-needs-confront-crypto-threats-head-on-2021-06-09/