Combat knives, drones, diving gear and other dual-use items that were ordered from sites such as Amazon, Ali Express are confiscated at border crossing

Retail giant offers search, product listings and even customer support in new language; launch comes with limited-time offer of free international shipping to Israel

Hundreds of packages said confiscated in past year due to concern over items' potential use for attacks

Australian platform removes cups, T-shirts, cellphone cases and postcards bearing the name of infamous chemical used by Nazis to murder millions in gas chambers