Where they once boasted about performance, computer-makers now talk about performance-per-watt, and emphasise their energy-saving credentials.

ECONOMIST: Computers and the environment

We all have the same 168 hours per week -- a number few people contemplate even as they talk about "24-7" with abandon -- but since time passes whether we acknowledge it or not, we seldom think through exactly how we're spending our hours.

WSJ: Are You As Busy As You Think?

Will he talk about -- you've given us figures before as to what it costs per soldier.

WHITEHOUSE: Press Briefing