User blog comment:RayShepp654/How to defeat the Reapers Theories/@comment-730941-20101027124716/@comment-730941-20101028065744

There's a small blue circle-y arrow on the right hand side of the page (next to the heading "Popular Blog Posts) - that seems to function as a Purge button.

As for reaping a Reaper, yeah that's a small (big) problem. Combined fleet action, maybe? All those allies Shep has collected need to do something :P