How? You have to wonder with a rash of terrorist attacks and all the security messages put on air travel how could individual(s) hijack a plane today? Thank G-D it appears that this standoff is moving in the right direction with all the passengers from the Egyptian plane being released in Cyprus. Yet how could this happen in the first place and who would even think they could smuggle a gun or explosives on a plane? It comes down to this you could have the state of the art security equipment in effect but without the right people controlling it you might as well leave the door open.