Taj Mahal under threat by al-Qaeda?

A number of Indian media outlets are reporting in recent days on a threat purportedly made by the Islamist militant group al-Qaeda against the Taj Mahal and other heritage sites in India.

While the reports are short on detail, security forces are said to be on heightened alert and visitors are additional subjected to additional checks.

Assuming this is a credible threat, let's hope the increased security is enough to prevent any terrorist incident.