<blockquote>Schneier, like pretty much everyone, uses lossy compression algorithms to reduce the size of images for sending via email but – as it won't work in reverse and add back the data removed – this code could be banned by the law, too. Files that can't be decrypted on demand to their original state, and files that can't be decompressed back to their exact originals, all look the same to this draft law.</blockquote>
via <a href="http://www.theregister.co.uk/2016/04/14/burr_feinstein_bill_prompts_protests/">US anti-encryption law is so 'braindead' it will outlaw file compression • The Register</a>.