But that will depend on persuading all EU countries to share passenger and crew list information - quite a number of them regard this as illegal under European free movement laws.

BBC: The truth behind UK migration figures

Earlier Tuesday, House Speaker Nancy Pelosi announced an expansive guest list of her own, including hero-U.S. Airways pilot Chesley "Sully" Sullenberger and several other crew members of flight 1549.

CNN: Banker in Obama speech recognized for his generosity