MEXICO CITY - Mexican Foreign Minister Marcelo Ebrard said on Twitter on Friday that Mexico does not act on the basis of threats after U.S. President Donald Trump threatened to close the U.S.-Mexico border if Mexico does not stop illegal immigration. 'Mexico does not act on the basis of threats. We are a great neighbor,' Ebrard said. '(Ask) the million and a half Americans who chose our country as their home, the largest community of (Americans) outside the U.S. For them we are also the best neighbor they could have.'