ARIS, May 29 — Italian and German investigators have disclosed fresh information suggesting that hints of an attack involving aircraft and the United States were more widespread among European law enforcement agencies before Sept. 11 than previously suspected.The disclosures come after weeks in which the Bush administration and the Federal Bureau of Investigation, which announced a shake-up today, have come under sharp criticism that they did not pay sufficient heed to signs of Al Qaeda plots in the United States that may have alerted them to the Sept. 11 attacks.A Central Intelligence Agency spokesman said today that before Sept....
