Somewhere in the sea of boxcars parked in rows around the rail depot are six that belong to your company. At least the last anyone remembers this is where they were. Now, three months later, the prospect of walking the lines in search of the familiar blue logo makes your head hurt just thinking about it.

Of the six to eight million detachable trailers in the United States, as many as ten percent are unaccounted for at any given time. Schedules are disrupted, shipments are delayed and costs continue to rise because it's like finding a needle in a haystack to find a trailer sitting, unattached, in the back lot of a warehouse.