the man leading the federal government s response to the gulf oil disaster. still in the middle of an updated briefing from houston. retired ghost kaurd admiral thad allen thld describing what you would have to say is a pretty deliberate procedure being taken this afternoon to close five openings allowing oil to pour out of the wellbore. several lines have to be sealed off, the stacking cap line, the kill line, the choke line, the bore line. i think there was one other. all of these lines have to be closed off at each step along the way while integrity will be tested. the wellbore integrity test comes first. then the line/valve shutdown process begins. that is supposed to start again this afternoon is my understanding. now, as this process unfolds, keep this in mind, when you hear that the pressure is high, that s good. low pressure indicates a leak