From Yahoo News:

However, Maloney’s tone shifted when she directed her questions to Dimon. The congresswoman referenced Dimon’s widely read annual letter released last week in which he wrote about JPMorgan having to sometimes turn down clients “with low character” as a way to be a “responsible” bank.
Maloney used excerpts of the letter to grill Dimon, saying that “actions speak louder than words on guns…[and] from what I can tell, these are just words to you.”