Thank you, Mr. Chair.
I understand that McKinsey is a large company, and I get that as the big boss, you didn't necessarily know everything that was happening—every letter mailed, and so forth—but you must have known certain things. Certainly, you're responsible for the culture that existed at the company.
To follow Mr. Johns' questions, you've acknowledged that something happened that shouldn't have happened with respect to Purdue Pharma. I would like to know what you think happened that shouldn't have happened, and who you think is responsible for that.
When did you first become aware of the work your company was doing for Purdue Pharma?