The basic claim in these articles is that (1) Obama is a "radical" because he's tied to Bill Ayers, and (2) his campaign is covering this up.
Obama led the Chicago Anneneberg Challenge from '95-'99 and sat on it's board for another year or so. During that time of Obama's association, the CAC funding lots of Bill Ayers' educational projects, or so says Kurtz, who has been examining the records. Kurtz claims that these projects were "radicalism" at its worst, combining community organizing with resistance to (get ready for this) racism. Here is how Kurtz puts it in the Wall Street Journal:
"The CAC's agenda flowed from Mr. Ayer's educational philosophy, which called for infusing students and their parents with a radical political commitment, and which downplayed achievement tests in favor of activism. In the mid-1960s, Mr. Ayers taught at a radical alternative school, and served as a community organizer in Cleveland's ghetto. In works like City Kids, City Teachers" and "Teaching the Personal and the Political," Mr. Ayers wrote that teachers should be community organizers dedicated to provoking resistance to American racism and oppression. His preferred alternative? 'I'm a radical, Leftist, small 'c" communist,' Mr. Ayers said in an interview...about the same time Mr. Ayers was forming the CAC."
If Kurtz and the far Right can cast Obama as a radical with clear connections to Ayers, they believe that they can "prove" to America that he's a small-c communist and "radical" who stirs up trouble and is un-American.
Schools working with communities, educators fighting racism -- this is radicalism? As far as Obama's campaign downplaying the links between Ayers and Obama, this is perhaps an unfortunate but necessary spin, given what a contentious figure Ayers is for the Right, and how far they'll go to run his name and his work through the mud.