> Yes, Congress could've subpoenaed the CEOs and forced them to testify, but it shouldn't have had to take that step. Once they have their follow up questions

> Yes, Congress could've subpoenaed the CEOs and forced them to testify, but it shouldn't have had to take that step. Once they have their follow up questions ready they should definitely subpoena them. Make a show of the fact that congress has had to flex its muscles to get them to co-operate.