TSA: Grenades found in passenger's bag

"Passengers can also use our 'Can I bring…' search engine on www.tsa.gov if they have questions, and yes, if you enter 'hand grenade,' you will be informed that they are prohibited," he continued.

The agency also recently released a series of reports of weapons it discovered that were concealed as common items like a credit card and a cellphone.

Here is a photo of the grenades, courtesy of the TSA: