code/model/Blog.php
public function tag() {
		$tag = $this->getCurrentTag();
		if($tag) {
			$this->blogPosts = $tag->BlogPosts();
			return $this->render();
		}
		return $this->httpError(404, "Not Found");
	}
public function tag() {
		$tag = $this->getCurrentTag();
		if($tag) {
			$this->blogPosts = $tag->BlogPosts();
			return $this->render();
		}
		return $this->httpError(404, "Not Found");
	}
Renders the blog posts for a given tag.

@return SS_HTTPResponse