The Jeep Cherokee brought to a halt by hackers exposed wireless networks as the weakest link in high-tech vehicles, underscoring the need to find fast over-the-air fixes to block malicious intrusions.

American households kept spending in June, capping a stronger quarterly performance for the biggest part of the economy.

Manufacturing in the United States cooled in July from the highest level in five months, a sign of fitful progress in the industry.

Polaris Transportation Group, a less-than-truckload carrier based in Canada, announced that it has begun overnight LTL service between Boston and Toronto.