But again, our statement about -- in response to accusations that there was American involvement is categorical.

WHITEHOUSE: Press Briefing

It had everything to do with the involvement of Congress, the response of the press and the fact that Glaxo hadn't conducted studies that could definitively disprove the allegation that Avandia causes heart attacks.

FORBES: Magazine Article

In a response to a request for comment about its involvement with Smart Choices, Battle Creek, Mich.

FORBES: Magazine Article

Iraq, in contrast, is a country of warring ethnic and sectarian communities, and our military involvement there resulted from an ad hoc response to faulty intelligence in the aftermath of the 9-11 attacks.

FORBES: Iraq: The Biggest Mistake In American Military History

Chuck Grassley of Iowa, a frequent critic of government resistance to congressional oversight, praised Sullivan's response to his request for details of any possible involvement of White House advance team staff in the scandal.

CNN: STORY HIGHLIGHTS

When President Obama was asked by The New Republic about getting the U.S. more involved in Syria, he posed the following questions in response: What would be the aftermath of our involvement on the ground?

NPR: U.S. Non-Intervention In Syria Could Mirror Outcome In Congo

Measuring galvanic skin response--changes in the electrical resistance, that is--can gauge emotional involvement.

FORBES: In Search of the Buy Button