ENTERTAINMENT
January 1, 2006 | Steve Hochman, Special to The Times
JULIAN CASABLANCAS is getting tired of people asking him where he's going. And he doesn't mean Madrid, his destination this day as he navigates the Milan airport, in the middle of a hectic European jaunt of press sessions and club shows to advance Tuesday's release of the Strokes' third album, "First Impressions of Earth." Rather, the singer-songwriter is frustrated with questions about his band's larger direction, its ambition and goals. Its mission.