Senate Banking Committee holds hearing on the role of securitization in the subprime mortgage market turmoil. Senate Commerce Committee holds hearing on the XM-Sirius merger. House Commerce panel holds hearing on the reauthorization of the prescription-drug user fee. House Financial Services Committee holds hearing on rising mortgage foreclosures. Carnegie Endowment for International Peace holds forum on China’s economic prospects. Kaiser Family Foundation hosts forum on health care and the uninsured.