Monday Evening Links

[Bloomberg] Tsipras Seeks Greek Opposition Backing in Stalled Talks

[NYT] Greece Looks to Russia as Deal With Europe Stumbles

[AP] Iran Nuclear Talks Near Deadline; Differences Remain

[NYT, Irwin] Now That Ben Bernanke Is Blogging, Here’s What He Should Write About

[Bloomberg] Data-Driven Danger in Fed’s Shifting Natural Jobless Rate

[NYT] China Appears to Attack GitHub by Diverting Web Traffic