Yes. In 1987 two Danish "tourist" were caught photographing military installations in Poland: https://apnews.com/article/d61c5f558248baf68d0de6377e09c4f1 https:

Yes. In 1987 two Danish "tourist" were caught photographing military installations in Poland: https://apnews.com/article/d61c5f558248baf68d0de6377e09c4f1 https://apnews.com/article/d61c5f558248baf68d0de6377e09c4f1 That was also a stupid plan