There’s a website called Versionista, designed to keep track of websites as their owners edit them. For political operatives looking to catch their opponents’ flip-flops, it’s heaven. John McCain’s website has been known to link to it, catching any shift in position on Barack Obama’s site.
So HERE’s Obama’s site updating its stance on technology, adding the word "science," removing a section on immigration, adding mention of a few bills Obama sponsored. See what else has changed.
And by the way, here’s McCain’s page on space, lengthened in August from one paragraph.
Are these routine edits of evolving positions? Or flip-flops? In regular life, people frequently rework what they write. In a campaign, their opponents are often less charitable.