The House and Senate bills are "probably 75 percent compatible, " Pelosi said, adding that a final merged bill could win approval from both chambers before Christmas if the Senate completes its work by the end of next week and a conference committee can meet over the weekend of December 19-20.

CNN: Pelosi asks to see better way than public option

Preparatory talks had been scheduled to end on Friday this week, but are now set to continue through the weekend and probably up to the point where heads of government arrive for the summit next Wednesday.

BBC: Scientists urge Rio moves on population and consumption

Allegiant can fly the bigger, 150-seat planes because it only operates most of its routes two to four times per week, employing many part-time staffers to help move tourists at the beginning and end of each weekend.

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