Overview of Key Overnight Developments on March 9

21:00-7:00 Keywords: Brazil, Michael Saylor, Calacanis

1. White House: The United States will become the world's Bitcoin superpower

2. Brazilian postal service seeks blockchain and artificial intelligence solutions

3. Industry insiders: U.S. policies may drive global institutions to accelerate cryptocurrency adoption

4. Michael Saylor shares "100 trillion dollar" crypto strategy at White House summit

5. U.S. and European authorities seize Garantex's domain and freeze its $26 million assets

6. Calacanis suggests a 0.01% tax on all U.S. cryptocurrency transactions, rejected by Sacks