Tinned fish, like sardines and anchovies, has always been more common in Europe than the U.S. But last year sales of tinned fish in the States rose to $2.7 billion, largely driven by young consumers. Correspondent Luke Burbank talks with Becca Millstein, founder of Fishwife, which sells carefully-packaged, sustainably-harvested seafood; and with Anna Hezel, author of the cookbook "Tin to Table," about the growing popularity of tinned fish.