Since 9-11, most of us have been stripping down when we take to the skies.

But we can soon expect that to ease up with a new security program being introduced to 28 major airports across the country.

ABC's Rob Nelson Reports

For years, travelers have faced slow-moving airport security lines.  But that could become a thing of the past, at least for some.

The TSA has unveiled a new program it hopes will speed up the process.

Napolitano said, "This is our new risk-based approach to security... supported by programs like "pre-check."  Programs not only help make sure the aviation environment remains safe, but also makes travel more pleasant."

Most major airports from Boston and New York in the Northeast, to Miami and Atlanta in the South, Chicago and Denver in the Midwest and Seattle, along with San Francisco and Las Angeles in the West will experience the change.

TSA "Pre-Check" is now available for passengers who submit fingerprints and background checks in advance.

Travelers who do so will be able to keep their shoes on and leave their laptops and cosmetics right there in their bags.

For now, the TSA will only say the fast lanes are substantially quicker.

Five major airlines (American, Delta, United, US Air and Alaska) are signed up to participate by the end of the year.