Merkel under pressure in escalating row over immigration

German Chancellor Angela Merkel faced a tense showdown Thursday within her divided conservative camp over the flashpoint issue of immigration that could threaten her political future.Merkel was confronted with an open rebellion by her hardline Interior Minister Horst Seehofer, long a fierce critic of her liberal stance on refugees who wants to toughen border controls.After late-night talks between them failed to resolve the dispute, a parliamentary session Thursday was suspended to allow the riv