Prominent cryptographers Adi Shamir and Ross J. Anderson were both denied visas to travel to the US (for a conference and a book awards ceremony respectively). In schneier.com/blog/archives/201 Bruce Schneier mentions "two other prominent cryptographers who are in the same boat". Odd and troubling.

For more on Shamir and Anderson see en.wikipedia.org/wiki/Adi_Sham and en.wikipedia.org/wiki/Ross_J._

A Mastodon instance for maths people. The kind of people who make $\pi z^2 \times a$ jokes.

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