baiitsu

First of all a big thank you for the outstanding work! Does Caltech have any plans to release the LaTeX source? And would a PDF or EPUB be made available (free or otherwise)?

Source? And even if he does, how is that a problem? AES-256 has been independently tested and reviewed. Whether or not the NSA forced the NIST [1] to adopt it as a symmetric encryption standard is irrelevant.

[1]: http://blog.cryptographyengineering.com/2013/09/on-nsa.html

Using pv:

  gcp() {
    cat "$1" | pv | cat > "$2"
  }