PBS NewsHour Weekend full episode January 18, 2019

>>Sreenivasan: ON THIS EDITION FOR SATURDAY, JANUARY 18: A LOOK AHEAD TO NEXT WEEK’S IMPEACHMENT TRIAL; AND IN OUR SIGNATURE SEGMENT, AN ATTACK ON ITALY’S OLIVE TREES AND THE BATTLE TO SAVE THEM. NEXT ON PBS NEWSHOUR WEEKEND.>>PBS NEWSHOUR WEEKEND IS MADEPOSSIBLE BY:BERNARD AND IRENE SCHWARTZ.SUE AND EDGAR WACHENHEIM III.THE CHERYL AND PHILIP MILSTEINFAMILY.ROSALIND P….