Real Life Intrudes
Look; Miller's an interesting guy. Some of his work, particularly on Batman and Daredevil, is brilliant. I'm not one of those people who adored Sin City, which seemed deeply obvious and derivative to me, but I can still read The Dark Knight Returns and remember the frisson of pleasure and recognition I got the first time I saw it. But now he wants to send Batman after Al Qaeda, and I think that's a bad idea. At least, a bad idea for someone whose comic work is regarded as something approaching literature.
On my coffee table I have The Great Comic Book Heroes, edited by Jules Feiffer, a compilation of super hero comics from the 30s and 40s which include superheroes taking on Hitler and Toho; we have video tapes of old Warner Bros. cartoons from the 40s ("Bugs Bunny Nips the Nips!"). There are all those late 60s-early 70s comics in mylar bags in my basement with "relevant" stories about drug use and Vietnam which seemed quaint even when they were published. They are curiosities, not stories. And even with Miller's ability behind them, I'm afraid that Batman taking on Al Qaeda is going to wind up being a curiosity, not a story. The comics which have made a political statement have always (it seems to me) done it sideways: Dark Knight Returns is a great super hero story, but manages to satirize the culture we were in, mid 80s, by showing us a near-future where everything was kicked up a notch. The Watchmen pretty much deconstructed the second half of the 20th century, politically and socially, as well as the idea of the super hero itself.
So, no, Frank, I'm sorry. If you want Batman to take on Bin Laden, I'd suggest that you go about metaphorically. Otherwise it trivializes the character and, worse, trivializes terrorism.