YUGOSLAVIA TALKING TO TITO ON HIS WAY HOME AFTER A 16,000-MILE SWING 
THROUGH ANKARA, TEHERAN, KARACHI AND NEW DELHI, U.S . SECRETARY OF 
STATE DEAN RUSK SQUEEZED IN A SHORT STOP IN BELGRADE . 
FOR THE DIPLOMATIC RECORD, RUSK OFFICIALLY WAS REPAYING A 1961 VISIT 
TO WASHINGTON BY YUGOSLAV FOREIGN MINISTER KOCA POPOVIC . BUT THERE 
WAS MORE TO RUSK'S COURTESY CALL THAN THAT . U.S.-YUGOSLAV RELATIONS 
WERE NEVER REALLY WARM ; SINCE THE U.S . CONGRESS LAST 
SUMMER SERVED NOTICE THAT IT WOULD ELIMINATE BELGRADE'S " MOST FAVORED 
NATION " TRADING CLAUSE THIS YEAR, THEY HAVE BEEN POSITIVELY CHILLY 
. MARSHAL TITO'S OSTENTATIOUSLY FRIENDLY TRIP TO MOSCOW LAST YEAR DID 
NOT IMPROVE MATTERS, EITHER . BUT BELGRADE WAS ANXIOUS TO ASSURE 
THE U.S . THAT IT WAS OFFICIALLY STILL " UNALIGNED, " 
AND TO SMOOTH THINGS OVER, RUSK AGREED AT THE LAST MINUTE 
TO MAKE HIS VISIT . POPOVIC WAS OUT AT MODERN SUCRIN 
AIRPORT TO GREET RUSK WHEN THE BIG U.S . JET TOUCHED 
DOWN . ALSO ON HAND WAS A RED CARPET AND A 
MILITARY BAND . BUT THAT WAS THE END OF THE FANFARE 
. SINCE THE YUGOSLAVS DO NOT UNFURL FOREIGN FLAGS ALONG THE 
NEW AUTOPUT THAT LEADS FROM THE AIRPORT TO THE CITY EXCEPT 
FOR A VISITING CHIEF OF STATE, RUSK'S ROUTE WAS LINED WITH 
BLUEAND-WHITE FINNISH BANNERS IN PLACE FOR PRESIDENT URHO K . KEKKONEN'S 
ARRIVAL NEXT DAY . THERE WERE NO CROWDS AT ALL, SINCE 
THE YUGOSLAVS DID NOT BOTHER TO ANNOUNCE RUSK'S TRIP IN ADVANCE 
. AFTER LUNCH WITH POPOVIC AND A RECEPTION AT THE U.S 
. EMBASSY GIVEN BY RETIRING U.S . AMBASSADOR GEORGE KENNAN, RUSK 
PAID A CALL ON TITO IN HIS BELGRADE VILLA . YUGOSLAVIA 
HAS SOME 1956 VINTAGE U.S . MILITARY EQUIPMENT FOR WHICH TITO 
WOULD LIKE SPARE PARTS ; SINCE 50 PER CENT OF YUGOSLAVIA'S 
COMMERCE IS WITH THE WEST, IT IS WORRIED ABOUT THE RISING 
TARIFF WALLS OF THE SIX-NATION COMMON MARKET . NATURALLY, TITO RAISED 
THE PROBLEM OF / MOST FAVORED " NATION STATUS WHICH, IF 
ELIMINATED, COULD SHARPLY BOOST IMPORT LEVIES ON YUGOSLAVIA'S $30 MILLION ANNUAL 
TRADE WITH THE U.S . RUSK COULD OFFER NO ASSURANCES THAT 
THE CLAUSE WOULD BE RESTORED, SINCE THE DECISION IS UP TO 
CONGRESS . ON THE WHOLE, IT WAS A PLEASANT IF INCONCLUSIVE 
CHAT . THEN, LESS THAN 24 HOURS AFTER HE ARRIVED, THE 
SECRETARY OF STATE, HIS WIFE, AND 28 AIDES WHO HAD ACCOMPANIED 
HIM ON THE FIVE-NATION TRIP, PACKED UP AND HEADED FOR WASHINGTON 
. 