US President Joe Biden, who met retail bosses and union chiefs on Wednesday, said he planned the biggest investment in America's ports in history as part of the $1tn (£730bn) infrastructure bill which is yet to pass the Senate. [size= 10pt]"Our goal is not only to get through this immediate bottleneck, but to address the long standing weaknesses in our transportation supply chain that this pandemic has exposed," he told reporters.[/size]