The TSA website gives a list of permitted items for the carry-on. However, they also mention that the final decision lies in the hand of the security agents. Is
emirates
fjords
airasia
agoda
faroe-islands
thessaloniki
iah
guadeloupe
ist
dca
aruba
tibetan-language
palestine
application-status
folk
timetables
greenland
baku
biometric-passports
tropical-destinations
luxury
tap-water
google-maps
one-way
gyd
ccu
sardinia
cuba
south-africa
bangalore