Global Sumud Flotilla activist Juliet Lamont says detainees faced 'systematic' violence in Israeli custody after interception
Australian activist says 180 people aboard one detention vessel were 'bashed and beaten, with dozens suffering broken ribs
Activist claims detainees faced sexual assault, tasers, beatings and injections with unknown sedatives
* 'It was a very planned campaign of violence so that we wouldn't come back'