OT: Seven US aircraft carriers have been sunk in the past 30 years.

[swaghauler]

It is kind of funny that nobody mentioned the most important ASW asset that was attached to a carrier group starting in the 90's (my friend Tim served on one attached to the Nimitz). The one (or two in high threat environments) LA Class Attack subs. I don't think they would just let an enemy sub stalk a carrier group without performing an "intervention."