NEW : Times Square bomb plot suspect Shahzad does not enter plea in hearing . NEW : His lawyer asks that he be served food prepared according to Muslim dietary laws in jail . Shahzad considered attacks on Grand Central , Grand Central , investigator says . Pakistan seeking Pakistan 's help in determining whether Faisal Shahzad assisted Shahzad .
NEW : Times Square bomb plot suspect Faisal Shahzad does not enter plea in hearing . NEW : His lawyer asks that he be served food prepared according to Islamic dietary laws in jail . Shahzad considered attacks on Rockefeller Center , Grand Central , investigator says . U.S. seeking Pakistan 's help in determining whether Pakistani Taliban assisted Shahzad .