It's true: a python, last seen in a cage on the fourth floor of Google's Manhattan complex, is on the loose. A reader just sent us a snap of the notice posted up around the search engine's offices in Chelsea. The three-foot snake — which answers to the name "Kaiser" — went missing yesterday. Side note: sophisticated algorithms, which match marketing messages to content, may indeed be the way of the future; when Google has an emergency, however, it reverts to the trusty flysheet.