I read the article and didn't find any terror in it. Considering that the PLO has imported weapons in this manner (by contract ship) it is understandable that Israel would take an interest.
As far as comparing Cynthia McKinney with Iranians protesting their government in their land, I don't see a meaningful relation.
In Iran, a dictatorial power is attempting to dominate a growing restless youthful population with a true thirst for democracy (or at least a republic) and a growing tolerance for secular freedoms. The band of mullahs who get to pick and choose who wins 'elections' are recognizably detestable from pretty much any humanist perspective.
Attempting to link what's going on in Iran with the Gaza issue serves neither cause. It is more a figment of the poster's imagination. The Gazan tragedy is multi-level. That this poor wretched, disengranchised people with their own hard-line, religiously orthodox terrorist regime would rather finance warfare against their neighbors than consider making the lives of their own people better (and of course this is all done by calculation- they are to be maintained miserable as an eternal goad against the State of Israel).