Earthquake Stuff Has Landed?

I can't help but think that some people are jumping the gun assuming stuff floating up on the beach is debris from the Japan earthquake. The one guy seems to think so:

"Ebbesmeyer said he thinks what beachcombers have been reporting are linked to the tsunami, specifically because the floats are lighter and float on top of the water and travel at a faster rate than other materials."

It seems to me it's not at all unusual for Japanese fishing boats to lose their floats and have them wash up on shore here and elsewhere.