By MUNIR AHMAD Pakistani police said Thursday they plan to ask a court to charge five Americans arrested in early December with terrorism, and will seek life sentences against them.The young Muslim men, who are from the Washington D.C. area, were captured in the eastern Pakistan city of Sargodha in a case that has spurred fears that Westerners are traveling to Pakistan to join militant groups.Tahir Gujar, a senior police investigator in Sargodha, said police had almost concluded their investigation and that the men would appear in an anti-terrorist court in the city on Jan.