Episode #307, timestamp 1:29:38 for the podcast version. Or on youtube, timestamp 1:23:08. Link:

https://youtu.be/VBPTFlpv31k?t=1h23m08s

Summary, paraphrased:

Lex asks about the issues around listing Monero and privacy coins in general. Brian starts with explaining it's about compliance with AML capabilities, in order to keep financial licenses. He then briefly shills zcash, but overall says he think privacy coins are really important, because financial privacy is critical and hopes they succeed.