oil platform explosion. some house democrats are already demanding answers. the house energy and commerce committee is asking scott josie, president and ceo of mariner energy, for a briefing on the incident. for abc news, eric barajas, houma, louisiana. meanwhile, at the site of the bp oil well, engineers there have removed a temporary cap that last month stopped all that gushing oil. no additional oil has seeped into the water because the well has been plugged with cement. that temporary cap was removed so that part of the well that failed to stop the spill can now be replaced. then the drilling of a relief well that will plug the broken well for good can proceed. federal safety investigators have been looking into consumer concerns about pampers diapers. that's after 4,700 complaints of severe rashes, all on children who had worn swaddler and cruiser dry max diapers, which hilt the market a few months ago. investigators could not find a direct link between these diapers and the severe rashes. parents are still urged to