HS2 construction: Creagh, Anderson, Shapps and Gillan
17 March 2014 Last updated at 14:13 GMT
Construction of the HS2 rail line could be started more quickly in the north of England, rather than the previous plan to build northwards in stages.
A Daily Politics panel of Labour's Mary Creagh and Joe Anderson, along with Conservatives Grant Shapps and Cheryl Gillan looked at the future of the rail project, its opposition to it, and how secure the support was from the major political parties.
On Monday, HS2 chairman Sir David Higgins called on the government to accelerate the northern section of the proposed £50bn rail link.