. >> edward griffin, thank you for joining us. >> this is pbs news hour weekend sunday. >>> finally, another in a series of reports about the mistreatment of animals. tonight fishermen off the coast of peru harpooning dolphins and using them as bait to catch sharks. >> a peruvian fishing boat headed into deep waters to hunt for shark. especially blue shark. it's auld dangerous, winter oceans. . they have permission to use the shark bait. when the harpoon strikes home, it doesn't kill the dolphin. as the fishermen reel it into the boat, it's still alive and still in pain. finally they haul it onto the deck with a spike. >> in peru, nowadays we have the world's biggest illegal wild life slaughter on the stations going on. now we have the pictures. we can see it and we can prove to people this is happening with thousands of dolphins per year getting killed. >> he estimates 3,000 dolphins a year are killed. other experts say more. this meat is not for human consumption but to provide fishermen with cheap bait to attract sharks to their fishing lines. we showed these pictures to conservat

edwards plans to retire right away, year earlier than planned. not long ago u.s. military intervention in syria seemed likely. a lot has changed since then. national security correspondent jennifer griffin the list. >> just one month ago, four u.s. navy destroyers had their sights set on syria. they had been entered into the weapon on stand by ready to strike. now 27 weapons inspectors for the prohibition of chemical weapons, a group that won the peace prize that began destroying a delivery system. no cameras captured the process and the team uses sledge hammers and chain saws and bulldozers to destroy the production equipment. >> with respect to syria, we have been pleased to see not only the un rez lou nrkn resoluo getting weapons out of syria. >> they led the search in iraq for the cia. >> there discussions about the best wi of proceeding getting rid of the chemical agents itself. it's tempered in two parts like epoxy glue. two pieces have to come together. they are precursors. destroying this is in some way an easier task than you might think. >> they visited 11 of the 20 declared sites since october 1st, but in the last week, car bombs targeted the hotels and they face mortar fire