Researchers in fusion energy have made significant advances, but progress has stalled because of budget cuts and annual funding fluctuations.

FORBES: A Challenge to America: Develop Fusion Power Within a Decade

But progress towards this goal has stalled.

ECONOMIST: A looming electricity crunch could trip up a new government

Mrs May told the committee e-borders currently screens over 65% of passenger movements into and out of the UK - but Keith Vaz and other critics say progress has stalled.

BBC: Crowd of shoppers

The US says it is planning to relocate several thousand marines off Okinawa, but has linked their departure to progress on the stalled base relocation plan.

BBC: US troops held over Okinawa alleged rape