A federal prosecutor says authorities are worried that a British citizen facing sentencing for supporting terrorists in Afghanistan will return to the same conduct when he gets out of prison.

Prosecutor Stephen Reynolds told a judge in Connecticut on Tuesday that Babar Ahmad (BAH'-bar AH'-mahd) hasn't shown remorse and hasn't admitted the full scope of his conduct. He urged the judge to impose a 25-year sentence on Ahmad on Wednesday.

Ahmad pleaded guilty in December to supporting terrorists through websites that sought to raise cash, recruit fighters and solicit items such as gas masks for the Taliban.

Ahmad says he tried to help Muslims under attack in Bosnia and Chechnya and that he deeply regrets his support for the Taliban. He says the 10 years he already served in prison is enough.