Now some fresh pickings from the Political Grapevine:

Santorum's Struggle

Pennsylvania Sen. Rick Santorum continues to face real trouble in his fight for re-election, but yet another poll indicates his chances have considerably improved.

The Senate's No. 3 Republican has significantly closed the gap against Democratic challenger and State Treasurer Bob Casey, trailing by just five percentage points after once trailing by more than twice that.

And while Casey leads Santorum 44 to 39 percent, Casey's unfavorable rating jumped from 13 to 20 percent as a result of negative TV ads, according to Franklin and Marshall college professor Terry Madonna who conducted the poll.

Since early July, Santorum has spent $680,000 on ads in the Pittsburgh market while the Casey campaign spent $207,000 during the same period.

The 'Hole' Truth?

The tireless work of the blogosphere has now raised serious doubts about an alleged Israeli aircraft attack on a Lebanese Red Cross ambulance on July 23.

The incident generated considerable news coverage and seemed to support allegations of deliberate Israeli atrocities. Numerous news agencies reported that the ambulance had taken a direct missile hit on the roof, in the middle of the Red Cross flag.

But comparisons of different photos of the vehicle and of similar vehicles suggest that the hole in the roof had been there all along, previously filled by a vent.

And a comparison by the photo weblog zombietime.com of a number of pictures of the ambulance showed considerable rust around apparent bullet holes, indicating that whatever damage had been done to it happened long before the current conflict.

Hezbollah in the House?

A Brooklyn man has been arrested because his company, HDTV Limited, has been providing New York-area customers with the Hezbollah television station Al-Manar.

Javed Iqbal is charged with conspiring to violate the International Emergency Economic Powers Act, under which it is a crime to conduct business with Al-Manar because the U.S. Treasury Department considers it a terrorist entity.

U.S. attorney Michael Garcia says Iqbal used satellite dishes at his Staten Island home to distribute the broadcasts.

A Night in the Life of an Illegal Immigrant

Tourists taking in Mexican culture can now experience what's being touted as an extreme sport in the central state of Hidalgo.

For the small price of $15, visitors can spend the night as an illegal immigrant crossing the Rio Grande led by a masked guide named Poncho. The mock journey is staged at Eco Alberto nature park, which was financed in part by the Mexican government but is communally owned.

It's there that participants begin their six-hour long migration, scaling walls, hiding in tunnels and riding blindfolded in a pickup truck.

Organizers say the purpose of the experience is to build empathy for migrants by embarking on a personal spiritual journey.

—FOX News Channel's Aaron Bruns contributed to this report.

With more than 35 years of journalism experience to draw from, Brit Hume currently serves as a senior political analyst for FOX News Channel (FNC) and contributes to all major political coverage. Hume also is regular panelist on FOX's weekly public affairs program, "FOX News Sunday" on Sundays at 2 p.m. and 6 p.m. ET. Click here for more information on Brit Hume