Asked about the prospect of a wider referendum at prime minister's questions, Mr Cameron said "we are in Europe and we have to make it work for us".

BBC: Tory MPs seeking Labour dialogue over 'EU overhaul'

This summer, when we openly publish our software detection code, you can take what you find useful for your own work, and then help us make it better for our SETI search.

CNN: What if there's somebody else out there?

We're going to make it easier for the private sector to work with us to support the Army's Renewable Energy Program, by reducing private sector risk and streamlining the approval process.

WHITEHOUSE: Energy and Environment Latest News | The White House

But I'm eager to work with all of you to make it as productive for us and for you as possible.

WHITEHOUSE: Press Briefing