==== 2024-05-28 ====
Notes from https://www.barrons.com/amp/articles/treasury-bills-cash-warren-buffett-849dee04
  * T-bills outstanding: $6 trillion
  * Noncompetitive bids at Treasury auctions is a good proxy for individual demand
  * Average noncompetitive bid for T-bill auctions in the past year: $15 billion
  * 52-week bill is auctioned every month
  * Buffett favors three-month and six-month T-bills.
  * T-bills have reinvestment risk

Notes from https://www.washingtonpost.com/world/2024/05/24/russia-jamming-us-weapons-ukraine/
  * Excalibur GPS-guided artillery shells
  * the High Mobility Artillery Rocket System, or HIMARS