Great
The war ended over 70 years ago, no apology for the bombs on Hiroshima or Nagasaki is necessary. Japan was given opportunities to surrender, and didn't. Tokyo and other cities were firebombed to the ground, and still no surrender. Okinawa was brutal, Japan itself would've been much harder. Certainly, an invasion of Japan would've meant quite a bit more casualties for the U.S., but there is no guarantee there would've been less Japanese casualties by invasion as opposed to the two bombs. I actually think Japan would've suffered a worse fate with an invasion.