Democrats in the United States Congress have begun revealing details of an ambitious spending and tax program to provide an economic stimimulus to the ailing economy and revitalize a many years-deteriorating civil infrastructure. Key to the stimulus package is infrastructure investment totaling $85 billion, including $30 billion for highway and bridge construction, $3 billion for airport improvement, $10 billion for drinking water and wastewater treatment projects and $4.5 billion to the Army Corps of Engineers. More on this will emerge shortly.