officials that had some concerns about the process and then by a leaking pipe. but they have dealt with those issues and now they have started this test. and essentially, it's a pressure test to see if this cap can withstand the pressure of the well. they have shut down the surface containment systems. they are going to be shutting down the valves on that cap. and then they're going to be looking at pressure readings. and as you heard thad allen mention in that sound bite, they want to see high pressure, because low pressure would indicate to them that they have a leak somewhere else that they need to deal with. now, they will be assessing it every six hours, taking a look at what information they've gleaned. they're planning to run this test for 48 hours. and at the end of that time, they will then evaluate what the next best step should be. and essentially, there are two ways that this cap can be used. one, it can be used to shut in that well. if they find that it can withstand the pressure of the well, they can close those valves and they can keep oil from leaking out. the other wayรง they can use its as a containment cap, which is the way they said all along that