To get at these non-mutating parts of the virus, Nabel and his colleagues used a two-step vaccination process, called "prime-boost."

VOA: standard.2010.07.21

The pact is a modest but important step forward, according to Kingston Reif, at the Washington-based Center For Arms Control and Non-Proliferation.

VOA: standard.2010.04.04

Earlier this week, Secretary Geithner and Federal Reserve Chairman Ben Bernanke also discussed with Congress another step which would enable the government to take control of major non-bank financial institutions threatened with collapse.

VOA: standard.2009.03.26

Unusual in that therapy here is strictly one-on-one (60 hours for the month) and non-12-step-based.

FORBES: Lohan Family Business Is Rehab

And as professionals, whose livelihood depended on results, and where testing was either non-existent or a step behind the latest advances in sports doping, it is unsurprising that so many succumbed.

ECONOMIST: The Tour de France is not dead yet

The U.S. has also taken the step of providing non-lethal assistance, such as communications equipment, medical equipment, humanitarian assistance as well as, again, helping them determine a road map for an inclusive future within Syria.

WHITEHOUSE: Press Briefing on NATO Defense Capabilities