Exhibit 23.2 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated July 17, 2003 relating to the financial statements of Plexus Vaccine Inc., which appears in Amendment No. 1 to the Current Report on Form 8-K of SIGA Technologies, Inc., dated May 23, 2003 (filed on July 22, 2003). We also consent to the reference to us under the heading "Experts" in such Registration Statement. /s/ PricewaterhouseCoopers LLP - ------------------------------ PricewaterhouseCoopers LLP New York, New York November 23, 2004