Hi Ross. Yes, the "combo" possibility has been mentioned though it is not really probable. At first sight yesterday all indicated to ETA. After all they've been performing similar attacks (though at smaller scale) all around spain for about 30 years. As hours went by, news came in that the small political group that supports ETA strongly condemned the attacks (that would be a 1st for an ETA attack, they never reject ETA attacks). Then the police found out arab-related evidences, not determinant, though. Later last night what was supposed to be a reivindication of the attacks from Al Qaeda. Still no one is 100% sure. Don't get me wrong, ETA has killed many innocent people (800+) in the last 30 years, bombing regardless of knowing there wolud be "civilian" victims including children, etc. It's only the size of the attack that makes me suspect. A "typical" ETA attack would have been only one bomb with a result, say of 15 people killed. Yesterday attacks are really too big for ETA's mo. THat was at least 10 different people leaving bombs in the different trains. Strange for ETA, indeed. Being distantly objective all points to arab terrorism, but dont be fooled by previous arab attacks, it could very well turn out that it was ETA. THey've been strongly triyng to perform bombings in train stations in Madrid for a few months. Not to mention that there are presidential elections on Sunday and the knowledge of who's actually responsible for these attacks could very well determine the election result.