politics. Becker single-handedly turned this press-clipping service into an actual spy network. He built a courier system to exchange information with Germany, convincing employees of the Condor and LATI airlines to carry spy messages in pouches on their flights to Germany and deposit the pouches at a firm owned by an SS man. He taught Engels how to use book ciphers and codes based on pencil-and-paper grids and turning grilles. And in the
