my name is alex blumberg and this is my "brief but spectacular" on "good tape." >> woodruff: >> woodrufff our "brief but spectacular" series on our website, pbs.org/newshour/brief. we'll be back in a moment. but first, take this time to hear from your local pbs station. >> woodruff: the house of representatives voted overwhelming think this evening to pass a bill to help puerto rico out of its debt crisis. the swlaition will create a federal oversight board and restructure it's $70 billion debt. the bill heads to the senate for a vote. yoanl and in our first episode of something we're calling science scope, our producer breaks down the science of smell. scientists have designed an experiment that allows them to visual izzo doris as they move through space, an innovation that could help train dogs or robots in rescue missions. >> that is an odor. >> that is an odor, or at least what an odor looks like. odors are normally invisible, swirling around us. but i'll tell you the secret behind why you can see this one. >> woodruff: all that and more is on our website, pbs.org/newshour. and that'

my name is alex blumberg and this is my "brief but spectacular" on "good tape." >> woodruff: >> woodrufff our "brief but spectacular" series on our website, pbs.org/newshour/brief. we'll be back in a moment. but first, take this time to hear from your local pbs station. it's a chance to offer your support, which helps keep programs like ours on the air. >> woodruff: for those stations still with us, the u.s. military and emergency managers have been running a massive natural disaster drill this week in washington, oregon and british columbia. it's one of several ways the region is preparing for the possibility of a catastrophic earthquake and tsunami that scientists say has a one-in- three chance of hitting the pacific northwest in the next 50 years. william brangham has our encore look at how one local community is trying to prepare. >> brangham: i'm standing on the coast of washington. this is the very edge of the continental united states. and just a few miles out in the pacific ocean is considered one of the most dangerous seismic faults in all of north america. scientists believe if