When was the schools thing? Back in the late 90's, early 2000?

Last April, Sen. Obama dismissed Mr. Ayers as just "a guy who lives in my neighborhood," and "not somebody who I exchange ideas with on a regular basis."
the late 90's and early 2000's were pretty much a decade ago. When did they stop talking? When was the last time they spoke or exchanged ideas? Was it in the last few years?

What is considered "recent" exactly?

Why aren't these questions answered in the article? Because answering them is probablyu detrimental to the position of mr. right wing nutso