Can Japanese people understand traditional Kanji?

Traditional Kanji, a writing script used before World War II. After World War II, it has been simplified to "Simplified Kanji" which Japanese people generally use.

My questions are "Can Japanese people understand traditional Kanji which was used before World War II?"
and " Will Japanese government attempt to recover the use of traditional Japanese Kanji and abolish the use of simplified Japanese Kanji which people use ?(Make traditional Japanese Kanji as official status)

Traditional Kanji = Old Kanji

This topic must be "up".

Japanese Old Kanji is the most important language in the world, even though more important than English. That's why USA being defeated during Pearl Harbor War!

Old Kanji is from Chinese traditional characters.
Traditional Chinese characters defeated the American English.