Responding to John McDonnell's comments on the Sunday Politics about the future of national borders, Yvette Cooper MP said:
"Border checks are really important for managing the refugee crisis - including stopping trafficking gangs, protecting child refugees who are disappearing in Europe, making sure proper asylum assessments take place so refugees get swift help and preventing people from travelling illegally if they are not refugees and have a safe home to return to.
"We need a system of clear border controls alongside sanctuary for refugees to cope with the terrible humanitarian crisis we face - that is why the Schengen system in Europe isn't working any more and many countries are rightly re-introducing border checks.
"At a time of extremist and terrorist threats, countries also need strong border checks for example to stop their own citizens going to join ISIL, or to prevent terrorists, extremists or criminals travelling with guns or weapons. And of course governments need to be able to manage and enforce immigration rules in the interests of the country and the economy.
"Labour needs to maintain a policy in favour of firm and effective border controls alongside help for refugees. I also disagree with John McDonnell about what will happen in the coming decades. Given the challenges we face, proper border checks are likely to become more important not less in future."