I am really curious how this came about.
It could have been a simple coincidence amplified by increased public interest in US intelligence activites.
However it is also possible that it's Merkel doing her thing again. It's remarkable how the tone has changed. Her party, the Christian Democrats, is traditionally the party of... I guess the polite phrase is "proponents of western integration". In an attempt to downplay it, she has kind of mishandled the initial NSA affair. Perhaps she has had another "Fukushima moment" and we are seeing the beginnings of a purge and a reevaluation of German-US relations in intelligence matters.