Leading reformist politicians signaled their intent to continue protest over what they say was a fraudulent election.
Tehran could attempt to use the Americans as bargaining chips in its bid to build nuclear weapons.
The US is considering harsh sanctions on Iran's oil industry if negotiations to curb Tehran's nuclear program fail.
A Turkish designer brings a woman's touch – and perspective – to the interior.
Conservatives welcomed confessions by defendants rejecting prior claims of election fraud. Critics said the statements were forced.
In court Saturday more than 100 defendants were charged with conspiring with foreign powers to foment a revolution using terrorism, subversion, and a media campaign to delegitimize election results.
Details are still emerging, but Kurdish officials say the tourists had been warned that the border was poorly marked.
Four clashes in the past eight days underscore the state's vulnerability. Southern secessionists and northern rebels have weakened the central government.
As one of the few parties to speak to both Israel and Hamas, Cairo sees itself as a natural mediator. But now Turkey has called into question its effectiveness.