I flatted the other day on Jupiter Island on a tack that was in the road and didn't think anything of it. then I go out today and flat again in the same area on an IDENTICAL TACK!!!! This plus the piece of glass I hit 10 minutes prior ruined my ride. (trying for 50 miles but turned around after 15 d/t running out of tubes.)
I went to the LBS to get more tubes and the guy there says those tacks have been getting everyone and it seems were put there intentionally.