Analysis of the pressures at play in the top kill procedure may help reveal who was right.

ECONOMIST: Nerves are fraying a month after the Gulf of Mexico oil spill

Kallmes says it is too early "to kill the procedure" but that doctors need to stop doing it routinely outside research trials.

FORBES: Effectiveness

News from the Gulf of Mexico got a little more positive this morning after the LA Times reported that BP "top kill" procedure was a success.

FORBES: Magazine Article

From that point, it will take another few days to permanently seal the well with mud and cement from below in what's called a "bottom kill" procedure.

CNN: STORY HIGHLIGHTS

Allen said that would push the interception date -- which had been expected Thursday or Friday -- to sometime between Sunday and next Tuesday, weather permitting, at which point crews could begin the "bottom kill" procedure to permanently cement the well.

CNN: STORY HIGHLIGHTS