going to put american lives in danger. >> nbc's ian williams is in hong kong, where snowden was last seen before he disappeared. ian? >> reporter: from a wet and wind-swept hong kong. edward snowden is believed still to be here and in hiding one week after revealing himself as the source of one of the biggest ever intelligence leaks. snowden is believed to be in a safe house somewhere in this teeming, rain-swept city of 2 million people, where hundreds marched to the u.s. consulate saturday -- >> support ed snowden! >> reporter: -- in his support, demanding the hong kong government defend him, a sentiment that seems to have wide support here. hong kong's leader has responded for the first time, with a pledge to follow established local laws. the territory, ruled by britain until it was returned to china in 1997, has a well-respected legal system with considerable independence. but beijing has the final say in sensitive extradition cases. state newspapers there have