A man has been brought to the United States from Nigeria to face charges that he provided money to a Somali terrorist group — and that he received military training from that group.  Federal prosecutors in Manhattan unsealed an indictment on Monday accusing the man, Mohamed Ibrahim Ahmed, of conspiring to provide material support to a foreign terrorist organization, Al Shabab, which has declared its intent to harm the United States. Mr. Ahmed, 35, is also charged with providing that support, conspiring to receive training from a foreign terrorist organization, and receiving the training.  Mr. Ahmed was transferred to United States custody by Nigerian authorities on Saturday. He wore dark blue prison clothes during a brief detention hearing on Monday before Debra C. Freeman, a federal magistrate judge in Manhattan. Communicating with the help of an Arabic interpreter, he indicated that he understood the charges against him. He is to be arraigned on Tuesday; a lawyer representing him, Sabrina Shroff, said that he would plead not guilty.  – New York Times