HOUSTON (Dispatches) -- The Trump administration is considering imposing new restrictions on Iranian diplomats attending the upcoming United Nations General Assembly in New York, intensifying its ongoing crackdown on foreign delegations.  An internal State Department memo obtained by The Associated Press reveals that, in addition to already severe limits on Iranian diplomats’ movements in the city, officials are contemplating barring them from shopping at large wholesale clubs such as Costco and Sam’s Club without prior approval. This move comes amid a wider review of visa policies targeting delegations from Iran, Sudan, Zimbabwe, and Brazil for the upcoming UN General Assembly starting September 22.