The U.S. Senate has 100 members. How many of them must agree on something for it to be considered a consensus? There are two misconceptions about the word “consensus.” One is that it’s related to ...
We use ciphers to keep secrets secret. To crack ciphers, you need math, psychology and a slab of luck. It's not easy. Many great ciphers remain unsolved, as cryptologist Craig P. Bauer tells DW's ...