last year's massive tsunami in japan are beginning to arrive on u.s. shores. take a look at that thing. that is a huge dock, ripped away by the pounding waves. it has floated 5000 miles, give or take a few, washing ashore on a beach in oregon. it is raising concerns a lot more debris is on the way and what is attached to the debris is also raising concern. fabian cousteau is accomplished oceanographer, grandson of famed jacques cousteau. a dock floating across the pacific. pretty monumental accident, if you want to call it that but stuff that might be on the dock has peel like you concerned. >> sure, jon. the problem is invasive species. if you have something like a dock that is 20 meters or 66 feet long wash up onshore from 5000 miles away it can