German E Coli Contains Bubonic Plague DNA?

According to this May 21, 2011 article in Spiegel Online International:

...On Tuesday, the German newspaper Süddeutsche Zeitung reported that Karch [the director of the RKI's EHEC consulting laboratory at the Münster University Hospital in western Germany] had discovered that the O104:H4 bacteria responsible for the current outbreak is a so-called chimera that contains genetic materia from various E. coli bacteria. It also contains DNA sequences from plague bacteria, which makes it particularly pathogenic. There is no risk, however, that it could cause a form of plague, Karch emphasized in remarks to the newspaper....

Bubonic plague has been used in biological warfare, most recently in 1941.

According to this source:

After World War II, both the United States and the Soviet Union developed diverse means of weaponizing pneumonic plague. Experiments included various delivery methods, vacuum drying, sizing the bacteria, developing strains resistant to antibiotics, combining the bacteria with other diseases (such as diphtheria), and genetic engineering. Scientists who worked in USSR bio-weapons programs have stated that the Soviet effort was formidable and that large stocks of weaponized plague bacteria were produced. Information on many of the Soviet projects is largely unavailable. Aerosolized pneumonic plague remains the most significant threat.

Contemporary cases

...There is no plague-infected animal population in Europe or Australia.

According to the New York Times in 2001:

American scientists in the 1980's made E. coli, a common bug, more virulent by transferring a dangerous gene from a relative of the plague bacterium.

And let's consider Hamburg itself, the epicenter of the most dangerous outbreak of E Coli in recorded history:

Police estimate that Hamburg has 1,000 Islamic radicals, about 100 of whom are considered dangerous.

Finally, we have the following from a review of the book Biohazard, published by Dr. Ken Alibek, head of the USSR's bioweapons program::

Many of the scientists who worked with him have been lured away from low-paying Russian labs to rogue regimes and terrorist groups around the world.

Is the recent outbreak of E Coli in Germany a weaponized version of the bacterium or a natural mutation? I'm certainly not qualified to answer that question, but surely Germany has scientists who are able to do so.