The Commission may file in a United States district court an action (1) against an imminently hazardous consumer product for seizure of such product under subsection (b)(2), or (2) against any person who is a manufacturer, distributor, or retailer of such product, or (3) against both. Such an action may be filed notwithstanding the existence of a consumer product safety rule applicable to such product, or the pendency of any administrative or judicial proceedings under any other provision of this chapter. As used in this section, and hereinafter in this chapter, the term “imminently hazardous consumer product” means a consumer product which presents imminent and unreasonable risk of death, serious illness, or severe personal injury.