By the end of March 2001, the Liberal state opposition had begun to claim that there was little private sector interest in the project, and that the government would be forced to contribute its full cost should it go ahead. Bracks and transport minister Peter Batchelor denied the rumours, saying that formal expressions of interest would be called later in the year. A launch was held in June, where the government hoped to find investment support, but Bracks and Batchelor conceded they would fully fund the project if no additional finance could be found. Meanwhile, the government agreed to assist National Express with its purchase of new trains, as the government had demanded they be built to faster specifications than the original franchise documents envisaged. Later that month, the government suggested that the fibre optic cabling required to upgrade signalling could encourage internet service providers to join the project in order to offer connectivity to towns along the upgraded lines.