They are particularly tricky, not least because governments are reluctant to compromise their ability to pursue other aims as well as free trade.

ECONOMIST: At daggers drawn

It also aims to improve its ability to deal with issues that matter to neighbourhoods and communities.

BBC: England

The company also aims to increase its ability to produce products in house.

WSJ: IKEA Chief Ohlsson Says Red Tape Is Hobbling Growth

Their aims were clear and the ability to defeat them was also clear.

BBC: Spent force: Are wars still winnable?

Virtual tschotskes beckon: Instead of selling generic virtual "gifts" like Facebook does, later this autumn Bianchini aims to give users the ability to design their own virtual presents and sell those (vampire love-bites, anyone?).

FORBES: The Social Web

The bill aims to restore to the judiciary the ability to bring in non mandatory life sentences and at the same time impose the punishment part of the sentence.

BBC: Criminal Cases Bill debate 1

The new functionality aims to make entertainment more social by giving users the ability to share and discover apps and games with friends through Facebook.

ENGADGET: Sony Ericsson updates Xperia line with the latest Gingerbread goods

Another approach aims to restorethe effectiveness of existing drugs by blocking bacteria's ability to pump antibiotics out, one mechanism of resistance.

FORBES: On The Cover/Top Stories