The 32BJ, which represents more than 145,000 workers across the country, has been organizing at airports for the past three years and is now at 16 airports.
Intel has improved the situation somewhat: Thunderbolt 3 will support passive cabling up to two meters with bandwidth of up to 20Gbps, 40Gbps active copper cables for full 40Gbps connectivity (again, up to two meters long), and 40Gbps optical cables arriving in 2016, with lengths of up to 60 meters.
Thunderbolt requires active cables, which is why they're so expensive (in the $50 range). Each cable end sports two tiny, low-power Gennum GN2033 transceiver chips that are responsible for boosting the signal passing through to enable 10 Gb/s data rates over runs as long as three meters.