As I said in my earlier post, trichinosis is no longer a concern when it comes to commercially-produced pork (in the US at least). There are less than 20 cases reported annually, and most of those are linked to things like wild game and homemade sausage/jerky.
Pigs are opportunistic omnivores, so if you don't control their diet, they'll happily eat any meat they happen to find. The main reason why the OT (and Koran) banned pork consumption was because it was very difficult to control a pig's diet at that time, which made them very prone to parasites (like trichinella worms). Today, pigs (and other livestock) have strict regulations on what they're allowed to be fed (no raw meat, for example). Combined with the level of control that farms are able to exert on the availability of food outside of permitted feed categories, that means that the risk of pigs contracting parasitic infections is quite low.