Update:
U.S. Official: Madrid Bombs Suggest ETA or Al Qaeda
March 11 WASHINGTON (Reuters) - U.S. intelligence agencies believe it is too early to conclude who was behind rush-hour explosions in Madrid that killed at least 180 people, but see the attack as bearing hallmarks of both the Basque separatist group ETA and al Qaeda, a U.S. official said on Thursday.
http://abcnews.go.com/wire/US/reuters20040311_305.html
The interesting thing I heard on FNC this am is the group is an offshoot of AlQ and is the SAME group who claimed responsibility for the London and US blackouts! Hmmmmm...pretty good when you consider the US claimed the blackout was NOT terrorism!