As to video "evidence" : Any human "interaction" , also fights, have a pre-and and an after-story. What we are seeing on youtube is a certain sequence of a longer story presented to us by the isreli army press departement to support THEIR version. I´d like to know more about the chain of events that predates the videotakes, before I accept that there can be nothing more to the story. Israel has confiscated ALL Journalists equipment after all, and made sure that the IDF is the only source of video-coverage. Why if there is nothing to hide ?
And why should the soldiers not be questioned if all they could have to tell is the official version of events ?
Having worked in a press departement myself I know from my own experience that simply accepting press releases by a concerned party in a dispute as facts requires a certain level of naivety. ( I would urge exactly the same caution were the source a palestinian one)
Israeli navy officers have slammed Israels diplomatic and military failure during and after the operation, slammed the governement for putting the blame on the activists instead of assessing the situation properly, and called for an investigation by an external body :