</font><blockquote><font

class=\"small\">Quote:</font><hr />
DUBAI (Reuters) - A letter purporting to come from Osama bin Laden (news -

web sites)\'s al Qaeda network claimed responsibility for the train bombings in Spain on Thursday, calling them

strikes against \"crusaders,\" a London-based Arabic newspaper said.

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Osama hashad very serious kidney disease. He has needed regular dialysis. Some of the Eastern

and Middle-Eastern papers are saying that he died months ago. Some people think we are keeping him \"alive\" to

have a rationale for some of our activities.