London Underground said it had addressed the issues in the dispute and urged the unions to hold more talks.

BBC: Jubilee Line Tube drivers vote to go on strike

Howard Collins, London Underground's chief operating officer, said however he believed all such issues in the dispute "have been addressed".

BBC: Jubilee Line Tube drivers vote to go on strike

But an Issa aide said the two issues are completely different: The 2008 dispute involved officials who worked in the White House and claimed executive privilege, the aide said, while Issa is seeking information from an agency over which Congress has oversight.

CNN: House committee weighs Holder contempt resolution

Strangely absent from the list of issues being hashed out by NFL Owners and Players in this long-running labor dispute is perhaps the most important issue of all: revenue sharing among Owners.

FORBES: In NFL Negotiations, Strange Silence On Revenue Sharing

Their Church split from the Eastern Orthodox and Roman Catholic Churches in 451AD because of a theological dispute over the nature of Christ but is now, on most issues, doctrinally similar to the Eastern Orthodox Church.

BBC: Christians in the Middle East debate part two