In terms of removals, Facebook removed 79.8% of the content, YouTube 75% and Twitter 45.7%.
They also said the Prison Service still lacked a national policy on how the needs of foreign nationals should be met and late notice of removals inhibited support for prisoners who were being removed.
The last three months of the year saw some recovery in the number of removals.
This was the biggest wave of removals Rio has ever seen.
The Home Office has confirmed it had authorised the resumption of removals of Darfuri refugees.
I want to put a stop to last-ditch judicial reviews, unfounded asylum claims and disruption of removals.
During the early stages of removals at Neve Dekalim, one army officer, who gave his name as Yitzhak, broke into tears and embraced a settler.
Mr Obama has been attacked from the left as a "deporter-in-chief" after presiding over large numbers of removals as president.
Barack Obama has presided over a record increase in the number of removals, in many cases on legal grounds that offend our basic notions of fairness.
Homeland Security has no intention of keeping the number of removals at 400,000 annually, and Secretary Napolitano is trying to appease hard-line anti-immigration conservatives.
In December, the agency announced it had deported 410,000 foreigners in 2012, giving Mr. Obama the record for the highest number of removals during his term.
