Dr Himmelstein worries that market pressures are forcing not-for-profits to adopt the tactics of their investor-owned rivals, such as hand-picking only the healthiest applicants and giving physicians financial incentives to cut costs.

ECONOMIST: Quality of mercy

Opposition groups now worry that disreputable Golkar supporters could adopt even uglier tactics.

CNN: ELECTIONS

The CDU was rattled after state elections last month, in which the CDU and SPD lost ground to the smaller parties - the Left Party, the FDP and the Greens - and there were calls for Angela Merkel to adopt more aggressive tactics Mr Steinmeier.

BBC: 'Merkel factor' could decide German vote

Cedric Leighton, a former Air Force intelligence officer who worked on developing the American drone program, said he believes the evasive tactics that militants are attempting to adopt will not tip the balance in their favor.

CNN: Militant tipsheet: How to avoid drone strikes