Waching daily Jun 1 2017

NBC'S TOM COSTELLO EXPLAINS WHY. >> Reporter: AT THE

GATE IN GRAND RAPIDS MICHIGAN, JETBLUE 915 AFTER A SMOKING LAPTOP

FORCED AN EMERGENCY LANDING. >> IT WAS PRETTY SCARY

TO SEE SMOKE ON THE PLANE. WE'RE AT 35,000 FEET.

>> Reporter: NEW AVIATION SAFETY EXPERTS SAY IT SHOULD

BE A RED FLAG WARNING TO HOMELAND SECURITY THAT PLACING ALL

ELECTRONICS LARGER THAN A CELL PHONE IN THE CARGO HOLD COULD

BE DANGEROUS. ON FRIDAY, HOMELAND SECURITY SECRETARY

JOHN KELLY INSISTED LITHIUM ION BATTERIES ARE DANGEROUS IF LOOSE

BUT POSE LITTLE RISK IF IN A DEVICE. >> AND THE DEVICE IS

NOT ON, IT'S QUITE SAFE I'M TOLD BY ALL THE STUDIES.

>> Reporter: BUT THE FAA HAS LONG WARNED ABOUT THE FIRE DANGER.

IN A REPORT ISSUED JUST LAST WEEK, THE FAA COUNTS AT LEAST 48

FIRES OR SMOKE INCIDENTS INVOLVING LITHIUM BATTERIES OR

CHARGERS IN THE LAST 17 MONTHS INCLUDING CELL PHONES, TABLETS,

LAPTOPS, E CIGARETTES, CAMERAS AND POWER TOOLS.

MANY OFF. THIS PASSENGER'S HEAD SET CAUGHT FIRE

CAUSING BURNS. SAFE THE EXPERTS ARE WARNING OF THE DANGER

OF LOADING SO MANY DEVICES OF THE CARGO HOLD WHERE PASSENGERS

AND CREW CAN'T PUT OUT A FIRE. >> I HAVE SIGNIFICANT

CONCERNS BECAUSE WE KNOW THERE ARE A NUMBER OF LITHIUM

BATTERIES THAT WILL SPONTANEOUSLY CREATE

THE POTENTIAL FOR FIRE. >> Reporter: WHILE

THERE ARE SPECIAL FIRE SUPPRESSION SYSTEMS, WOULD THAT HANDLE A

LITHIUM BATTERY FIRE. FLIGHT CREWS ARE WARNED TO USE WATER.

A COMPANY CALLED PLANE GUARD SELLS CASES FOR IN FLIGHT FIRES BUT NO

U.S. AIRLINES HAVE BOUGHT ONE. HOMELAND SECURITY

TELLS NBC NEWS IT'S STILL PLANNING ON THE SO-CALLED LAPTOP BAN

ON EUROPEAN FLIGHTS IN TH