we didn't start the fire

12345
Across
  1. 4. It was considered the largest hippies reunion ever.
  2. 5. Color that Americans were afraid of during the Cold War.
Down
  1. 1. One of the first satellites launched (and name of a vaccine).
  2. 2. Scientist that made a cameo in “Oppenheimer”.
  3. 3. "Happy birthday, Mr. President…"