Send a short note to the White House
Go to the White House comments web page and send them this brief message:
Before President Obama takes his oath of office, please instruct Chief Justice Roberts not to append an extralegal monotheistic codicil as he did during the previous presidential inauguration. A person taking an oath of office can speak freely after the legal oath recitation ends and should not be directed what to say by the person giving the oath. It is unseemly for the person leading a government oath to spatchcock a religious phrase.