You're presented with a mixture of absolute and relative knobs across the surface -- smoothed action on the absolute, notched on the relative.

ENGADGET: Native Instruments Traktor Kontrol S4 review Alt

When B-1Bs went into action in Kosovo, air force commanders could see Serbian SA-6 surface-to-air missile radars track the planes.

BBC: Profile: B-1 bomber

An east London resident wants to take legal action after his apartment complex was earmarked for the use of surface-to-air missiles during the Olympics.

BBC: London 2012: Legal bid over Olympics flats missile plan

They found a particular piece on the surface of the bacteria, which they have called SpyCEP, is responsible for blocking the action of IL-8.

BBC: NEWS | Health | How the flesh-eating bug attacks

They found that T cells went into action when CD-2 bound itself to a counterpart molecule, LFA-3, on the surface of cells that escort antigens to their death.

FORBES: Skin Deep