Does this mean freighters can mount .50 cals now?

Galrahn over at Information Dissemination is talking about a US Navy statement saying that it can't/won't protect all civilian commerce transiting the Gulf of Aden. Which begs the question, who will? The cost to the global economy is substantial, as it is one of the most heavily trafficked straights in the world, and yet the Navy seems to feel that fighting piracy is below them. What in ze hell? The Navy seems to be in full retreat from the littoral region, even though that is the Naval equivalent of counterinsurgency warfare. Previously, they told the Marines they weren't getting any closer than 25nm to shore. So who is going to bare the cost/risk? With insurance costs on shipping skyrocketing I can't imagine it will be long before we see the rise of a "Blackwater Navy." Congressional hearings and civilian NGO outrage will be soon to follow no doubt. But that is the price you pay, if there is a demand going unfulfilled, it won't be long before the market creates a supply. Maybe I should strap on my eye patch and try to get a Letter of Marque from Congress?