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The war planes had been taking part in the ceremony of exchange of the national flag at the Praça dos Três Poderes, at the Esplanada dos Ministerios.
No one was injured in the incident, but the shockwave was so powerful nearly every window in the court building was destroyed and a few in the Congressional buildings beyond.
Originally posted by cranspace
reply to post by C-JEAN
They are almost unbreakable
Usualy, you have "tempered glass" in the "upper" windows ! !
Two Sonic Booms From a low altitude would break any type of glass