No Israel is not launching another war on us, no attacks no nothing ..
Apparently its some drug deal gone badly .. and i wouldnt be surprised considering the huge drug traffic btw us and Israel ( Hezbollah being a major dealer as per some reports).

Here are some headlines:

Israeli sources:
Drug dealers open fire at IDF force near Lebanon border
One man killed, another seriously wounded in shooting incident between drug dealers, IDF soldiers near divided village of Ghajar on Israeli-Lebanese border

From AFP:
Lebanese killed by Israeli fire: Lebanese officials
One Lebanese man was killed and another wounded on Sunday when Israeli troops opened fire on them near the divided border village of Ghajar, a Lebanese security official told AFP.
“We believe that the two men were involved in a drug smuggling operation, One of them died of his injuries,” the security official said.

A Lebanese army spokesman told AFP that the two men were unarmed at the time of the incident and were on the Lebanese side of the border.