take a look at this. this is the houston ship channel that connects the gulf of mexico to the port of houston and is one of the busiest waterways in the country, and it s america s largest fossil fuel thoroughfare. now, last year 700,000 barrels of oil traveled through this channel every day. and if you want to get your texas tea through the houston shipping channel there are pretty good odds that your oil tanker will have to pass right underneath the fred harkman bridge to get out into the gulf of mexico. and that s why green piece activists chose the fred heartman bridge for the scene of a pretty dramatic protest. 11 protesters suspended themselves more than 100 feet above the water. green piece said they intended