Finally, there is the problem that even some Democrats on Capitol Hill - notably, Senator Joe Lieberman (technically an Independent who caucuses with Democrats) and Rep. Bennie Thompson, the chairmen respectively of the Senate and House Homeland Security Committees - recognize could eventuate at any time: an attack involving relatively short-range, ship-borne ballistic missiles used to launch a strategic electromagnetic pulse (EMP) attack against this country.
These include: eight sophisticated diesel submarines, advanced SU-30 fighter aircraft, modern air-to-air and air-to-surface weapons, supersonic anti-ship cruise missiles and as many as 350 short- and medium-range ballistic missiles.